# What is CVE-2023-21631? > CVE-2023-21631 is a critical-severity flaw (CVSS 9.8) in 315 5g Firmware from Qualcomm, published on 4 July 2023. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.4%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2023-21631 ## At a glance - **Verdict:** Fix this soon. Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month. - **Precursor Intelligence risk score:** 54 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** Critical (CVSS 9.8 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 0.4% (latest exploit-likelihood forecast) - **Published:** 4 July 2023 - **Record last updated:** 11 August 2025 - **Main product:** 315 5g Firmware from Qualcomm - **Affected products:** 160 ## What is CVE-2023-21631? In plain terms It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### The official description Weak Configuration due to improper input validation in Modem while processing LTE security mode command message received from network. ### What kind of flaw is it? - CWE-20: Improper Input Validation ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Easy: no special conditions - Login needed first: No login needed - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can read data, change data and take it offline Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2023-21631 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.4%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%. ### Timeline - 4 July 2023: Published - 11 August 2025: Record last updated ### How Precursor Intelligence ranks it CVE-2023-21631 scores **54 out of 100 (Medium)**, with the action "Plan remediation". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: smaller factor - Threat activity around it: smaller factor 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2023-21631? The published record lists 160 products. - [315 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/315_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [205 Firmware](https://www.precursorintelligence.com/product/qualcomm/205_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [215 Firmware](https://www.precursorintelligence.com/product/qualcomm/215_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [9205 Firmware](https://www.precursorintelligence.com/product/qualcomm/9205_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Apq8017 Firmware](https://www.precursorintelligence.com/product/qualcomm/apq8017_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Apq8037 Firmware](https://www.precursorintelligence.com/product/qualcomm/apq8037_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Aqt1000 Firmware](https://www.precursorintelligence.com/product/qualcomm/aqt1000_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Ar8035 Firmware](https://www.precursorintelligence.com/product/qualcomm/ar8035_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [C-V2x 9150 Firmware](https://www.precursorintelligence.com/product/qualcomm/c-v2x_9150_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Csra6620 Firmware](https://www.precursorintelligence.com/product/qualcomm/csra6620_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Csra6640 Firmware](https://www.precursorintelligence.com/product/qualcomm/csra6640_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Csrb31024 Firmware](https://www.precursorintelligence.com/product/qualcomm/csrb31024_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Fastconnect 6200 Firmware](https://www.precursorintelligence.com/product/qualcomm/fastconnect_6200_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Fastconnect 6700 Firmware](https://www.precursorintelligence.com/product/qualcomm/fastconnect_6700_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Fastconnect 6800 Firmware](https://www.precursorintelligence.com/product/qualcomm/fastconnect_6800_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Fastconnect 6900 Firmware](https://www.precursorintelligence.com/product/qualcomm/fastconnect_6900_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Fastconnect 7800 Firmware](https://www.precursorintelligence.com/product/qualcomm/fastconnect_7800_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Mdm9628 Firmware](https://www.precursorintelligence.com/product/qualcomm/mdm9628_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Msm8108 Firmware](https://www.precursorintelligence.com/product/qualcomm/msm8108_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Msm8209 Firmware](https://www.precursorintelligence.com/product/qualcomm/msm8209_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Msm8608 Firmware](https://www.precursorintelligence.com/product/qualcomm/msm8608_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Msm8909w Firmware](https://www.precursorintelligence.com/product/qualcomm/msm8909w_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca4004 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca4004_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6174a Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6174a_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6391 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6391_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6420 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6420_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6421 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6421_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6426 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6426_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6430 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6430_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6431 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6431_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6436 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6436_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6564a Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6564a_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6564au Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6564au_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6574a Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6574a_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6574au Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6574au_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6595au Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6595au_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6696 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6696_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca6698aq Firmware](https://www.precursorintelligence.com/product/qualcomm/qca6698aq_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca8081 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca8081_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca8337 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca8337_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qca9377 Firmware](https://www.precursorintelligence.com/product/qualcomm/qca9377_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcm2290 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcm2290_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcm4290 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcm4290_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcm4325 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcm4325_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcm4490 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcm4490_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcm6490 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcm6490_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcn6024 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcn6024_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcn9024 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcn9024_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcs2290 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcs2290_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcs4290 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcs4290_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcs4490 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcs4490_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcs6490 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcs6490_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qcs8550 Firmware](https://www.precursorintelligence.com/product/qualcomm/qcs8550_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Qts110 Firmware](https://www.precursorintelligence.com/product/qualcomm/qts110_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180x-Aa Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180x-aa_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180x-Ab Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180x-ab_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180x-Ac Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180x-ac_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180x-AD Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180x-ad_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180x-Af Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180x-af_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Sc8180x+sdx55 Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180xp-Aa Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180xp-aa_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180xp-Ab Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180xp-ab_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180xp-Ac Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180xp-ac_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180xp-AD Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180xp-ad_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sc8180xp-Af Firmware](https://www.precursorintelligence.com/product/qualcomm/sc8180xp-af_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [SD 455 Firmware](https://www.precursorintelligence.com/product/qualcomm/sd_455_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sd660 Firmware](https://www.precursorintelligence.com/product/qualcomm/sd660_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sd855 Firmware](https://www.precursorintelligence.com/product/qualcomm/sd855_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sd865 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/sd865_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sd888 Firmware](https://www.precursorintelligence.com/product/qualcomm/sd888_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sdx55 Firmware](https://www.precursorintelligence.com/product/qualcomm/sdx55_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sdx57m Firmware](https://www.precursorintelligence.com/product/qualcomm/sdx57m_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sg4150p Firmware](https://www.precursorintelligence.com/product/qualcomm/sg4150p_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sm7250p Firmware](https://www.precursorintelligence.com/product/qualcomm/sm7250p_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sm7315 Firmware](https://www.precursorintelligence.com/product/qualcomm/sm7315_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sm7325p Firmware](https://www.precursorintelligence.com/product/qualcomm/sm7325p_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Smart Audio 200 Firmware](https://www.precursorintelligence.com/product/qualcomm/smart_audio_200_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Smart Audio 400 Firmware](https://www.precursorintelligence.com/product/qualcomm/smart_audio_400_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 208 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_208_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 210 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_210_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 212 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_212_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 4 Gen 1 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_4_gen_1_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 4 Gen 2 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_4_gen_2_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 425 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_425_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 429 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_429_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 430 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_430_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 439 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_439_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 460 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_460_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 480 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_480_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 480+ 5g Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 630 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_630_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 636 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_636_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 660 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_660_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 662 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_662_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 665 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_665_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 680 4g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_680_4g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 685 4g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_685_4g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 690 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_690_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 695 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_695_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 750g 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_750g_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 765 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_765_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 765g 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_765g_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 768g 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_768g_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 778g 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_778g_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 778g+ 5g Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 780g 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_780g_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 782g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_782g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 7c+ Gen 3 Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 8 Gen 1 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_8_gen_1_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 8+ Gen 1 Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 855 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_855_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 855+/860 Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 865 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_865_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 865+ 5g Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 870 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_870_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon 888 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_888_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon 888+ 5g Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Auto 4g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_auto_4g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Auto 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_auto_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - Snapdragon W5+ Gen 1 Firmware by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Wear 1300 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_wear_1300_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Wear 2100 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_wear_2100_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Wear 2500 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_wear_2500_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Wear 3100 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_wear_3100_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon X24 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_x24_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon X50 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_x50_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon X55 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_x55_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon X65 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_x65_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon X70 Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_x70_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Snapdragon Xr2 5g Firmware](https://www.precursorintelligence.com/product/qualcomm/snapdragon_xr2_5g_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sw5100 Firmware](https://www.precursorintelligence.com/product/qualcomm/sw5100_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sw5100p Firmware](https://www.precursorintelligence.com/product/qualcomm/sw5100p_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Sxr2130 Firmware](https://www.precursorintelligence.com/product/qualcomm/sxr2130_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Video Collaboration Vc3 Platform Firmware](https://www.precursorintelligence.com/product/qualcomm/video_collaboration_vc3_platform_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9306 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9306_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9326 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9326_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9335 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9335_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9340 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9340_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9341 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9341_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9360 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9360_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9370 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9370_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9375 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9375_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9380 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9380_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcd9385 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcd9385_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3610 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3610_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3615 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3615_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3620 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3620_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3660b Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3660b_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3680b Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3680b_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3910 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3910_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3950 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3950_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3980 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3980_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3988 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3988_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn3990 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn3990_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wcn6740 Firmware](https://www.precursorintelligence.com/product/qualcomm/wcn6740_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wsa8810 Firmware](https://www.precursorintelligence.com/product/qualcomm/wsa8810_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wsa8815 Firmware](https://www.precursorintelligence.com/product/qualcomm/wsa8815_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wsa8830 Firmware](https://www.precursorintelligence.com/product/qualcomm/wsa8830_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wsa8832 Firmware](https://www.precursorintelligence.com/product/qualcomm/wsa8832_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified - [Wsa8835 Firmware](https://www.precursorintelligence.com/product/qualcomm/wsa8835_firmware) by [Qualcomm](https://www.precursorintelligence.com/vendors/qualcomm) (Operating system): version not specified ## How do I fix CVE-2023-21631? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [qualcomm.com](https://www.qualcomm.com/company/product-security/bulletins/july-2023-bulletin) (Vendor advisory) ## Questions ### What is CVE-2023-21631? CVE-2023-21631 is a critical-severity flaw in 315 5g Firmware from Qualcomm, published on 4 July 2023. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### How serious is CVE-2023-21631? It scores 9.8 out of 10 on the CVSS severity scale, which is critical. Our risk score for CVE-2023-21631 is 54 out of 100, which is Medium. Its action is "Plan remediation". Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month. ### Is CVE-2023-21631 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.4%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2023-21631 affect? For 315 5g Firmware from Qualcomm: version not specified. The record lists 160 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2023-21631? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2023-21631 affect you? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact