CVE-2021-26391

HIGH

AMD Enterprise Driver - Improper Verification of Cryptographic Signature

Title source: llm

Description

Insufficient verification of multiple header signatures while loading a Trusted Application (TA) may allow an attacker with privileges to gain code execution in that TA or the OS/kernel.

References (1)

Core 1

Core References

Vendor Advisory

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1029

Scores

CVSS v3 7.8

EPSS 0.0006

EPSS Percentile 18.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-347

Status published

Products (26)

amd/enterprise_driver < 22.10.20

amd/radeon_pro_software < 22.q2

amd/radeon_rx_vega_56_firmware

amd/radeon_rx_vega_64_firmware

amd/radeon_software < 22.5.2

amd/ryzen_3_5300g_firmware

amd/ryzen_3_5300ge_firmware

amd/ryzen_3_5300u_firmware

amd/ryzen_3_5400u_firmware

amd/ryzen_5_5500u_firmware

... and 16 more

Published Nov 09, 2022

Tracked Since Feb 18, 2026