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MEDIUM · 4.4

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 auth...

Vulnerability 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 Score

4.4

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
AmdRyzen 7 5700G Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 7 5700G-
AmdRyzen 7 5700Ge Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 7 5700Ge-
AmdRyzen 5 5600G Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 5 5600G-
AmdRyzen 5 5600Ge Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 5 5600Ge-
AmdRyzen 3 5300G Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 3 5300G-
AmdRyzen 3 5300Ge Firmware< comboam4_v2_pi_1.2.0.6c
AmdRyzen 3 5300Ge-
AmdRyzen 9 5980Hx Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 9 5980Hx-
AmdRyzen 9 5980Hs Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 9 5980Hs-
AmdRyzen 7 5825U Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 7 5825U-
AmdRyzen 9 5900Hx Firmware< cezannepi-fp6_1.0.0.9
AmdRyzen 9 5900Hx-

References

FAQ

What is CVE-2021-26382?

CVE-2021-26382 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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 auth...

How severe is CVE-2021-26382?

CVE-2021-26382 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26382?

Check the references section above for vendor advisories and patch information. Affected products include: Amd Ryzen 7 5700G Firmware, Amd Ryzen 7 5700G, Amd Ryzen 7 5700Ge Firmware, Amd Ryzen 7 5700Ge, Amd Ryzen 5 5600G Firmware.