CVE-2021-26382
An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, potentially…
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, potentially resulting in a denial of service.
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.19% probability · 8th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- amd/ryzen 7 5700g firmware · amd/ryzen 7 5700ge firmware · amd/ryzen 5 5600g firmware · amd/ryzen 5 5600ge firmware · amd/ryzen 3 5300g firmware · amd/ryzen 3 5300ge firmware · amd/ryzen 9 5980hx firmware · amd/ryzen 9 5980hs firmware · amd/ryzen 7 5825u firmware · amd/ryzen 9 5900hx firmware · amd/ryzen 9 5900hs firmware · amd/ryzen 7 5825c firmware · amd/ryzen 7 5800h firmware · amd/ryzen 5 5625u firmware · amd/ryzen 7 5800hs firmware · amd/ryzen 5 5625c firmware · amd/ryzen 5 5600h firmware · amd/ryzen 5 5600hs firmware · amd/ryzen 7 5800u firmware · amd/ryzen 5 5600u firmware · +15 more
- Source
- psirt@amd.com
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.