Home/CVE/An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (AC
CVE

CVE-2021-26382

An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (AC

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.

MEDIUM · CVSS 4.4 EPSS 0.00049
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

35
amd ryzen 7 5700g firmware< comboam4_v2_pi_1.2.0.6c
amd ryzen 7 5700ge firmware< comboam4_v2_pi_1.2.0.6c
amd ryzen 5 5600g firmware< comboam4_v2_pi_1.2.0.6c
amd ryzen 5 5600ge firmware< comboam4_v2_pi_1.2.0.6c
amd ryzen 3 5300g firmware< comboam4_v2_pi_1.2.0.6c
amd ryzen 3 5300ge firmware< comboam4_v2_pi_1.2.0.6c
amd ryzen 9 5980hx firmware< cezannepi-fp6_1.0.0.9
amd ryzen 9 5980hs firmware< cezannepi-fp6_1.0.0.9
▣

Scoring & Timeline

4.4
MEDIUM · CVSS v3.1 · psirt@amd.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Jul 2022 · 08:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027Vendor Advisory
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