CVE-2021-46772 Memory corruption in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
Privileged attackers with BIOS or UEFI shell access can corrupt memory via SPI ROM tampering, potentially causing code execution or denial of service.
- 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-2021-46772?
CVE-2021-46772 is a low-severity memory corruption vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, published on 13 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Insufficient input validation in the ABL may allow a privileged attacker with access to the BIOS menu or UEFI shell to tamper with the structure headers in SPI ROM causing an out of bounds memory read and write, potentially resulting in memory corruption or denial of service.
Which versions are affected by CVE-2021-46772?
How do I fix CVE-2021-46772?
No fix has been published for CVE-2021-46772 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-46772 being exploited?
There is no known exploitation of CVE-2021-46772 in the wild and no public exploit code.
Sources
Also known as GHSA-mgjx-cq94-rwcv.