CVE-2025-62862 Memory corruption in n/a
An incorrectly formed SMC call in AmpereOne UEFI-MM drivers allows out-of-bounds reads leaking secure information or writes corrupting memory.
- 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-2025-62862?
CVE-2025-62862 is a medium-severity memory corruption vulnerability in n/a, published on 16 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.
Which versions are affected by CVE-2025-62862?
It affects 13 products.
Products include Amperecomputing Ampereone A128-34x Firmware, Amperecomputing Ampereone A144-24x Firmware, Amperecomputing Ampereone A144-26m Firmware, Amperecomputing Ampereone A144-27x Firmware, Amperecomputing Ampereone A144-33m Firmware, Amperecomputing Ampereone A160-28m Firmware and 7 more.
How do I fix CVE-2025-62862?
No fix has been published for CVE-2025-62862 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-2025-62862 being exploited?
There is no known exploitation of CVE-2025-62862 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-rw9h-q55r-xq4f.