CVE-2024-36343 Memory corruption in AMD EPYC™ 4004
A privileged attacker can exploit improper input validation in AMD SMM to perform out-of-bounds memory access, compromising confidentiality and 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-2024-36343?
CVE-2024-36343 is a medium-severity memory corruption vulnerability in AMD EPYC™ 4004, published on 19 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.
Weakness: CWE-124
Which versions are affected by CVE-2024-36343?
How do I fix CVE-2024-36343?
No fix has been published for CVE-2024-36343 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-2024-36343 being exploited?
There is no known exploitation of CVE-2024-36343 in the wild and no public exploit code.
Sources
Also known as GHSA-qjgc-hx5r-r632.