CVE-2025-10451 H19Int15CallbackSmm: SMM memory corruption vulnerability in combined DXE/SMM (SMRAM write)
Attackers can execute arbitrary code in System Management Mode via unchecked output buffers, compromising firmware 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-2025-10451?
CVE-2025-10451 is a high-severity memory corruption vulnerability in InsydeH2O, published on 12 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Unchecked output buffer may allowed arbitrary code execution in SMM and potentially result in SMM memory corruption.
Weakness: CWE-787
Which versions are affected by CVE-2025-10451?
How do I fix CVE-2025-10451?
No fix has been published for CVE-2025-10451 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-2025-10451 being exploited?
There is no known exploitation of CVE-2025-10451 in the wild and no public exploit code.
Sources
Also known as GHSA-2x38-j7v9-v23r.