CVE-2021-26391

HIGH

7.8

CVSS Score

Published: November 9, 2022 at 08:44 PM UTC

Updated: June 17, 2026 at 03:43 AM UTC

101 products affected across 1 vendorRadeon SoftwareRyzen 5 5600U FirmwareRyzen 5 5600HS Firmware

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Enterprise Driver · AMD

95%

v < 22.10.20

Affected range stops below 22.10.20, so it looks safe — our inference, not a vendor statement

amd-radeon-pro-w5500 (same device) · amd-radeon-pro-w5500x (same device) · amd-radeon-pro-w5700 (same device) · amd-radeon-pro-w5700x (same device) · amd-radeon-pro-w6300m (same device) · amd-radeon-pro-w6400 (same device) · amd-radeon-pro-w6500m (same device) · amd-radeon-pro-w6600 (same device) · amd-radeon-pro-w6600m (same device) · amd-radeon-pro-w6600x (same device) · amd-radeon-pro-w6800 (same device) · amd-radeon-pro-w6800x (same device) · amd-radeon-pro-w6800x-duo (same device) · amd-radeon-pro-w6900x (same device) · amd-radeon-rx-5300 (same device) · amd-radeon-rx-5300-xt (same device) · amd-radeon-rx-5300m (same device) · amd-radeon-rx-5500 (same device) · amd-radeon-rx-5500-xt (same device) · amd-radeon-rx-5500m (same device) · amd-radeon-rx-5600 (same device) · amd-radeon-rx-5600-xt (same device) · amd-radeon-rx-5600m (same device) · amd-radeon-rx-5700 (same device) · amd-radeon-rx-5700-xt (same device) · amd-radeon-rx-5700m (same device) · amd-radeon-rx-6300m (same device) · amd-radeon-rx-6400 (same device) · amd-radeon-rx-6500-xt (same device) · amd-radeon-rx-6500m (same device) · amd-radeon-rx-6600 (same device) · amd-radeon-rx-6600-xt (same device) · amd-radeon-rx-6600m (same device) · amd-radeon-rx-6600s (same device) · amd-radeon-rx-6650-xt (same device) · amd-radeon-rx-6650m (same device) · amd-radeon-rx-6650m-xt (same device) · amd-radeon-rx-6700 (same device) · amd-radeon-rx-6700-xt (same device) · amd-radeon-rx-6700m (same device) · amd-radeon-rx-6700s (same device) · amd-radeon-rx-6750-xt (same device) · amd-radeon-rx-6800 (same device) · amd-radeon-rx-6800-xt (same device) · amd-radeon-rx-6800m (same device) · amd-radeon-rx-6800s (same device) · amd-radeon-rx-6850m-xt (same device) · amd-radeon-rx-6900-xt (same device) · amd-radeon-rx-6950-xt (same device)

Radeon Pro Software · AMD

95%

v < 22.q2

Affected range stops below 22.q2, so it looks safe — our inference, not a vendor statement

Radeon Rx Vega 56 Firmware · AMD

95%

All versions

amd-radeon-rx-vega-56 (same device)

Radeon Rx Vega 64 Firmware · AMD

95%

All versions

amd-radeon-rx-vega-64 (same device)