CVE-2025-29939

State: Published
Severity: 6.9 Medium
Published: Feb 10, 2026
Updated: Feb 10, 2026
Reserved: Mar 12, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N	AMD

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
AMD EPYC™ 9004 Series ProcessorsAMD	GenoaPI 1.0.0.GNot affected
AMD EPYC™ 7003 Series ProcessorsAMD	MilanPI 1.0.0.HNot affected
AMD EPYC™ 9005 Series ProcessorsAMD	TurinPI 1.0.0.6Not affected
AMD EPYC™ 8004 Series ProcessorsAMD	GenoaPI 1.0.0.GNot affected
AMD EPYC™ Embedded 7003 Series ProcessorsAMD	EmbMilanPI-SP3 v9 1.0.0.CNot affected
AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa")AMD	EmbGenoaPI-SP5 1.0.0.BNot affected
AMD EPYC™ Embedded 9005 Series ProcessorsAMD	EmbTurinPI-SP5_1.0.0.1Not affected
AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")AMD	EmbGenoaPI-SP5 1.0.0.BNot affected
AMD EPYC™ Embedded 8004 Series ProcessorsAMD	EmbGenoaPI-SP5 1.0.0.BNot affected

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html

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