CVE-2021-26380 Integer overflow in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
A compromised Trusted OS driver can exploit an integer overflow to access memory outside intended ranges, compromising integrity on AMD GPUs.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26380?
CVE-2021-26380 is a low-severity vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, published on 15 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A compromised Trusted OS (TOS) driver could issue a malformed call that could potentially allow memory access outside the intended range resulting in loss of integrity.
Weakness: CWE-190
Which versions are affected by CVE-2021-26380?
How do I fix CVE-2021-26380?
No fix has been published for CVE-2021-26380 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26380 being exploited?
There is no known exploitation of CVE-2021-26380 in the wild and no public exploit code.
Sources
Also known as GHSA-fq4j-p777-724r.