# What is CVE-2021-26365? > CVE-2021-26365 is a high-severity flaw (CVSS 8.2) in Ryzen 5 2400g Firmware from Amd, published on 9 May 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 0.6%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2021-26365 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 48 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 8.2 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:** 0.6% (latest exploit-likelihood forecast) - **Published:** 9 May 2023 - **Record last updated:** 28 January 2025 - **Main product:** Ryzen 5 2400g Firmware from Amd - **Affected products:** 108 ## What is CVE-2021-26365? 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 take it offline. ### The official description Certain size values in firmware binary headers could trigger out of bounds reads during signature validation, leading to denial of service or potentially limited leakage of information about out-of-bounds memory contents. ### What kind of flaw is it? - CWE-125: Out-of-bounds Read ### 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 take it offline Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H` ## Is CVE-2021-26365 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 0.6%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.6%, 0.6%, 0.6%, 0.6%, 0.6%, 0.6%, 0.6%. ### Timeline - 9 May 2023: Published - 28 January 2025: Record last updated ### How Precursor Intelligence ranks it CVE-2021-26365 scores **48 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-2021-26365? The published record lists 108 products. Versions are as published: "before pollockpi-ft5_1.0.0.3" means every version up to, but not including, pollockpi-ft5_1.0.0.3. - [Ryzen 5 2400g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_2400g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Amd 3015ce](https://www.precursorintelligence.com/product/amd/amd_3015ce) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Amd 3015ce Firmware](https://www.precursorintelligence.com/product/amd/amd_3015ce_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before pollockpi-ft5_1.0.0.3 - [Amd 3015e](https://www.precursorintelligence.com/product/amd/amd_3015e) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Amd 3015e Firmware](https://www.precursorintelligence.com/product/amd/amd_3015e_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before pollockpi-ft5_1.0.0.3 - [Ryzen 3 2200g](https://www.precursorintelligence.com/product/amd/ryzen_3_2200g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 2200g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_2200g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 2200ge](https://www.precursorintelligence.com/product/amd/ryzen_3_2200ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 2200ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_2200ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 2200u](https://www.precursorintelligence.com/product/amd/ryzen_3_2200u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 2200u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_2200u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 2300u](https://www.precursorintelligence.com/product/amd/ryzen_3_2300u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 2300u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_2300u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 3200g](https://www.precursorintelligence.com/product/amd/ryzen_3_3200g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3200g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3200g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 3200ge](https://www.precursorintelligence.com/product/amd/ryzen_3_3200ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3200ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3200ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 3200u](https://www.precursorintelligence.com/product/amd/ryzen_3_3200u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3200u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3200u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before picassopi-fp5_1.0.0.d - [Ryzen 3 3250c](https://www.precursorintelligence.com/product/amd/ryzen_3_3250c) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3250c Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3250c_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before picassopi-fp5_1.0.0.d - [Ryzen 3 3250u](https://www.precursorintelligence.com/product/amd/ryzen_3_3250u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3250u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3250u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before picassopi-fp5_1.0.0.d - [Ryzen 3 5300g](https://www.precursorintelligence.com/product/amd/ryzen_3_5300g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5300g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5300g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 3 5300ge](https://www.precursorintelligence.com/product/amd/ryzen_3_5300ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5300ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5300ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 3 5300u](https://www.precursorintelligence.com/product/amd/ryzen_3_5300u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5300u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5300u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 3 Pro 2100ge](https://www.precursorintelligence.com/product/amd/ryzen_3_pro_2100ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 Pro 2100ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_pro_2100ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 Pro 3200g](https://www.precursorintelligence.com/product/amd/ryzen_3_pro_3200g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 Pro 3200g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_pro_3200g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 Pro 3200ge](https://www.precursorintelligence.com/product/amd/ryzen_3_pro_3200ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 Pro 3200ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_pro_3200ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 2400g](https://www.precursorintelligence.com/product/amd/ryzen_5_2400g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 2400ge](https://www.precursorintelligence.com/product/amd/ryzen_5_2400ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 2400ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_2400ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 2500u](https://www.precursorintelligence.com/product/amd/ryzen_5_2500u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 2500u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_2500u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 2600h](https://www.precursorintelligence.com/product/amd/ryzen_5_2600h) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 2600h Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_2600h_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 3400g](https://www.precursorintelligence.com/product/amd/ryzen_5_3400g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 3400g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_3400g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5500](https://www.precursorintelligence.com/product/amd/ryzen_5_5500) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5500 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5500_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5500u](https://www.precursorintelligence.com/product/amd/ryzen_5_5500u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5500u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5500u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 5 5600](https://www.precursorintelligence.com/product/amd/ryzen_5_5600) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5600g](https://www.precursorintelligence.com/product/amd/ryzen_5_5600g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 5 5600ge](https://www.precursorintelligence.com/product/amd/ryzen_5_5600ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 5 5600x](https://www.precursorintelligence.com/product/amd/ryzen_5_5600x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 6600h](https://www.precursorintelligence.com/product/amd/ryzen_5_6600h) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 6600h Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_6600h_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 5 6600hs](https://www.precursorintelligence.com/product/amd/ryzen_5_6600hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 6600hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_6600hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 5 6600u](https://www.precursorintelligence.com/product/amd/ryzen_5_6600u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 6600u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_6600u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 5 Pro 3350g](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3350g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 Pro 3350g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3350g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 Pro 3350ge](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3350ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 Pro 3350ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3350ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 Pro 3400g](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3400g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 Pro 3400g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3400g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 Pro 3400ge](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3400ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 Pro 3400ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_pro_3400ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 2700u](https://www.precursorintelligence.com/product/amd/ryzen_7_2700u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 2700u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_2700u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 2800h](https://www.precursorintelligence.com/product/amd/ryzen_7_2800h) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 2800h Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_2800h_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5700g](https://www.precursorintelligence.com/product/amd/ryzen_7_5700g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5700g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5700g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 7 5700ge](https://www.precursorintelligence.com/product/amd/ryzen_7_5700ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5700ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5700ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 7 5700u](https://www.precursorintelligence.com/product/amd/ryzen_7_5700u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5700u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5700u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before cezannepi-fp6_1.0.0.8 - [Ryzen 7 5700x](https://www.precursorintelligence.com/product/amd/ryzen_7_5700x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5700x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5700x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5800](https://www.precursorintelligence.com/product/amd/ryzen_7_5800) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5800 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5800_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5800x](https://www.precursorintelligence.com/product/amd/ryzen_7_5800x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5800x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5800x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5800x3d](https://www.precursorintelligence.com/product/amd/ryzen_7_5800x3d) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5800x3d Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5800x3d_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 6800h](https://www.precursorintelligence.com/product/amd/ryzen_7_6800h) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 6800h Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_6800h_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 7 6800hs](https://www.precursorintelligence.com/product/amd/ryzen_7_6800hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 6800hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_6800hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 7 6800u](https://www.precursorintelligence.com/product/amd/ryzen_7_6800u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 6800u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_6800u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 9 5900](https://www.precursorintelligence.com/product/amd/ryzen_9_5900) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5900 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5900_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 5900x](https://www.precursorintelligence.com/product/amd/ryzen_9_5900x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5900x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5900x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 5950x](https://www.precursorintelligence.com/product/amd/ryzen_9_5950x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5950x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5950x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 6900hs](https://www.precursorintelligence.com/product/amd/ryzen_9_6900hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 6900hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_6900hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 9 6900hx](https://www.precursorintelligence.com/product/amd/ryzen_9_6900hx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 6900hx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_6900hx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 9 6980hs](https://www.precursorintelligence.com/product/amd/ryzen_9_6980hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 6980hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_6980hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 - [Ryzen 9 6980hx](https://www.precursorintelligence.com/product/amd/ryzen_9_6980hx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 6980hx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_6980hx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before rmb_1.0.0.4 ## How do I fix CVE-2021-26365? 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 - [amd.com](https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001) (Vendor advisory) ## Questions ### What is CVE-2021-26365? CVE-2021-26365 is a high-severity flaw in Ryzen 5 2400g Firmware from Amd, published on 9 May 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 take it offline. ### How serious is CVE-2021-26365? It scores 8.2 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2021-26365 is 48 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2021-26365 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 0.6%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2021-26365 affect? For Ryzen 5 2400g Firmware from Amd: version not specified. The record lists 108 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2021-26365? 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-2021-26365 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