CVE-2025-29939

EUVD-2025-207140
Improper access control in secure encrypted virtualization (SEV) could allow a privileged attacker to write to the reverse map page (RMP) during secure nested paging (SNP) initialization, potentially resulting in a loss of guest memory confidentiality and integrity.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 3.5%
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
amd64-microcode
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
needed
questing
ignored
resolute
needed
trusty
not-affected
xenial
not-affected
Common Weakness Enumeration
References
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html