CVE-2025-0031

Publication date 10 February 2026

Last updated 27 February 2026


Ubuntu priority

Description

A use after free in the SEV firmware could allow a malicous hypervisor to activate a migrated guest with the SINGLE_SOCKET policy on a different socket than the migration agent potentially resulting in loss of 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