CVE-2025-29952

Publication date 10 February 2026

Last updated 27 February 2026


Ubuntu priority

Description

Improper Initialization within the AMD Secure Encrypted Virtualization (SEV) firmware can allow an admin privileged attacker to corrupt RMP covered memory, potentially resulting in loss of guest memory integrity

Read the notes from the security team

Status

Package Ubuntu Release Status
amd64-microcode 25.10 questing
Needs evaluation
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes


rodrigo-zaiden

affects SEV FW, supported in microcode package starting from noble