# What is CVE-2021-26366? > CVE-2021-26366 is a high-severity flaw (CVSS 7.1) in Radeon Software from Amd, published on 12 May 2022. 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 0.2%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2021-26366 ## 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:** 45 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 7.1 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:** 0.2% (latest exploit-likelihood forecast) - **Published:** 12 May 2022 - **Record last updated:** 8 August 2023 - **Main product:** Radeon Software from Amd - **Affected products:** 125 ## What is CVE-2021-26366? In plain terms An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data and change data. ### The official description An attacker, who gained elevated privileges via some other vulnerability, may be able to read data from Boot ROM resulting in a loss of system integrity. ### What kind of flaw is it? - Unknown: Unknown ### How an attack on it works - Where an attacker can be: Already on the device - How hard it is to pull off: Easy: no special conditions - Login needed first: An ordinary user account - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can read data and change data Severity vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N` ## Is CVE-2021-26366 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 0.2%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.2%, 0.2%, 0.2%, 0.2%, 0.2%, 0.2%, 0.2%. ### Timeline - 12 May 2022: Published - 8 August 2023: Record last updated ### How Precursor Intelligence ranks it CVE-2021-26366 scores **45 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-2021-26366? The published record lists 125 products. - [Radeon Software](https://www.precursorintelligence.com/product/amd/radeon_software) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Application): version not specified - [Athlon 3050ge](https://www.precursorintelligence.com/product/amd/athlon_3050ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Athlon 3050ge Firmware](https://www.precursorintelligence.com/product/amd/athlon_3050ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Athlon 3150g](https://www.precursorintelligence.com/product/amd/athlon_3150g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Athlon 3150g Firmware](https://www.precursorintelligence.com/product/amd/athlon_3150g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Athlon 3150ge](https://www.precursorintelligence.com/product/amd/athlon_3150ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Athlon 3150ge Firmware](https://www.precursorintelligence.com/product/amd/athlon_3150ge_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 3100](https://www.precursorintelligence.com/product/amd/ryzen_3_3100) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3100 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3100_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 3300g](https://www.precursorintelligence.com/product/amd/ryzen_3_3300g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3300g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3300g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 3300x](https://www.precursorintelligence.com/product/amd/ryzen_3_3300x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 3300x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_3300x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 5125c](https://www.precursorintelligence.com/product/amd/ryzen_3_5125c) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5125c Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5125c_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 5400u](https://www.precursorintelligence.com/product/amd/ryzen_3_5400u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5400u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5400u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 5425c](https://www.precursorintelligence.com/product/amd/ryzen_3_5425c) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5425c Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5425c_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 3 5425u](https://www.precursorintelligence.com/product/amd/ryzen_3_5425u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 3 5425u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_3_5425u_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 2600](https://www.precursorintelligence.com/product/amd/ryzen_5_2600) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 2600 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_2600_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 2600x](https://www.precursorintelligence.com/product/amd/ryzen_5_2600x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 2600x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_2600x_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 3450g](https://www.precursorintelligence.com/product/amd/ryzen_5_3450g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 3450g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_3450g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 3600](https://www.precursorintelligence.com/product/amd/ryzen_5_3600) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 3600 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_3600_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 3600x](https://www.precursorintelligence.com/product/amd/ryzen_5_3600x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 3600x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_3600x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5560u](https://www.precursorintelligence.com/product/amd/ryzen_5_5560u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5560u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5560u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5600h](https://www.precursorintelligence.com/product/amd/ryzen_5_5600h) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600h Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600h_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5600hs](https://www.precursorintelligence.com/product/amd/ryzen_5_5600hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5600u](https://www.precursorintelligence.com/product/amd/ryzen_5_5600u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5600u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5600u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [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 5625c](https://www.precursorintelligence.com/product/amd/ryzen_5_5625c) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5625c Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5625c_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5625u](https://www.precursorintelligence.com/product/amd/ryzen_5_5625u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5625u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5625u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5700g](https://www.precursorintelligence.com/product/amd/ryzen_5_5700g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5700g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5700g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 5 5700ge](https://www.precursorintelligence.com/product/amd/ryzen_5_5700ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5 5700ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5_5700ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 2700](https://www.precursorintelligence.com/product/amd/ryzen_7_2700) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 2700 Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_2700_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 2700x](https://www.precursorintelligence.com/product/amd/ryzen_7_2700x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 2700x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_2700x_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 3700x](https://www.precursorintelligence.com/product/amd/ryzen_7_3700x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 3700x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_3700x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 3800x](https://www.precursorintelligence.com/product/amd/ryzen_7_3800x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 3800x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_3800x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5800h](https://www.precursorintelligence.com/product/amd/ryzen_7_5800h) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5800h Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5800h_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5800hs](https://www.precursorintelligence.com/product/amd/ryzen_7_5800hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5800hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5800hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5800u](https://www.precursorintelligence.com/product/amd/ryzen_7_5800u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5800u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5800u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5825c](https://www.precursorintelligence.com/product/amd/ryzen_7_5825c) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5825c Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5825c_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 7 5825u](https://www.precursorintelligence.com/product/amd/ryzen_7_5825u) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 7 5825u Firmware](https://www.precursorintelligence.com/product/amd/ryzen_7_5825u_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 3900x](https://www.precursorintelligence.com/product/amd/ryzen_9_3900x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 3900x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_3900x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 3950x](https://www.precursorintelligence.com/product/amd/ryzen_9_3950x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 3950x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_3950x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 5900hs](https://www.precursorintelligence.com/product/amd/ryzen_9_5900hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5900hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5900hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 5900hx](https://www.precursorintelligence.com/product/amd/ryzen_9_5900hx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5900hx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5900hx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 5980hs](https://www.precursorintelligence.com/product/amd/ryzen_9_5980hs) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5980hs Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5980hs_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen 9 5980hx](https://www.precursorintelligence.com/product/amd/ryzen_9_5980hx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 9 5980hx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_9_5980hx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 2920x](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2920x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 2920x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2920x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 2950x](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2950x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 2950x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2950x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 2970wx](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2970wx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 2970wx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2970wx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 2990wx](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2990wx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 2990wx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_2990wx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 3960x](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_3960x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 3960x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_3960x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 3970x](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_3970x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 3970x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_3970x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper 3990x](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_3990x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper 3990x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_3990x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper Pro 3945wx](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_pro_3945wx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen Threadripper Pro 3945wx Firmware](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_pro_3945wx_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): version not specified - [Ryzen Threadripper Pro 3955wx](https://www.precursorintelligence.com/product/amd/ryzen_threadripper_pro_3955wx) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - 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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-1027) (Vendor advisory) ## Questions ### What is CVE-2021-26366? CVE-2021-26366 is a high-severity flaw in Radeon Software from Amd, published on 12 May 2022. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data and change data. ### How serious is CVE-2021-26366? It scores 7.1 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2021-26366 is 45 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-2021-26366 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 0.2%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2021-26366 affect? For Radeon Software from Amd: version not specified. The record lists 125 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2021-26366? 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-2021-26366 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