CVE-2021-46750 Integer overflow in AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
A malicious x86 attacker can exploit an integer overflow in TEE message validation to corrupt Trusted Memory Regions, potentially compromising system integrity.
- 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-2021-46750?
CVE-2021-46750 is a low-severity vulnerability in AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, published on 6 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Failure to validate the address and size in TEE (Trusted Execution Environment) may allow a malicious x86 attacker to send malformed messages to the graphics mailbox resulting in an overlap of a TMR (Trusted Memory Region) that was previously allocated by the ASP bootloader leading to a potential loss of integrity.
Weakness: CWE-190
Which versions are affected by CVE-2021-46750?
How do I fix CVE-2021-46750?
No fix has been published for CVE-2021-46750 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-46750 being exploited?
There is no known exploitation of CVE-2021-46750 in the wild and no public exploit code.
Sources
Also known as GHSA-fhx8-g6j7-6crx.