CVE-2025-62862: Medium severity Ampere AmpereOne AC03 vulnerability
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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-62862?
CVE-2025-62862 is classified as a medium severity vulnerability that can lead to information leakage.
How do I fix CVE-2025-62862?
To mitigate CVE-2025-62862, update affected Ampere devices to the latest firmware versions: AC03 to 3.5.9.3, AC04 to 4.4.5.2, and AmpereOne M to 5.4.5.1.
What type of vulnerability is CVE-2025-62862?
CVE-2025-62862 is an out-of-bounds read vulnerability affecting specific AmpereOne devices.
Which devices are affected by CVE-2025-62862?
CVE-2025-62862 affects Ampere AmpereOne AC03, AC04, and M devices running versions prior to their respective fixed releases.
Can CVE-2025-62862 lead to data loss?
While CVE-2025-62862 may expose sensitive information through leakage, it does not directly lead to data loss.