CVE-2021-26366 Information disclosure in Athlon™ Series

High 7.1 Published 12 May 2022 Updated 17 Sep 2024

An attacker with elevated privileges can read Boot ROM data, compromising system integrity on AMD Athlon and Ryzen processors.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-26366?

CVE-2021-26366 is a high-severity vulnerability in Amd Radeon Software, published on 12 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An attacker, who gained elevated privileges via some other vulnerability, may be able to read data from Boot ROM resulting in a loss of system integrity.

Which versions are affected by CVE-2021-26366?

It affects 63 products.

Products include Amd Athlon 3050ge Firmware, Amd Athlon 3150g Firmware, Amd Athlon 3150ge Firmware, Amd Radeon Software, Amd Ryzen 3 2200u Firmware, Amd Ryzen 3 2300u Firmware and 57 more.

How do I fix CVE-2021-26366?

No fix has been published for CVE-2021-26366 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-26366 being exploited?

There is no known exploitation of CVE-2021-26366 in the wild and no public exploit code.

All Amd Radeon Software vulnerabilities

Sources

Also known as GHSA-gcw2-hf24-m7fv.