Vulnerability · Published Dec 16, 2025 · Assigned by mitre
CVE-2025-62862
Medium 4.6
In plain English
A medium-severity out-of-bounds read in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
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.
Affected products (as reported)
Weakness: CWE-125, CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L