CVE-2025-29939
No fix known EPSS <1%CVSS 6.9
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.
Products: AMD EPYC™ 9004 Series Processors, AMD EPYC™ 7003 Series Processors, AMD EPYC™ 9005 Series Processors, AMD EPYC™ 8004 Series Processors, AMD EPYC™ Embedded 7003 Series Processors, AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa"), AMD EPYC™ Embedded 9005 Series Processors, AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo"), AMD EPYC™ Embedded 8004 Series Processors
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu 24.04 LTS | amd64-microcode | no fix |
| Ubuntu 25.10 | amd64-microcode | no fix |
| Ubuntu 26.04 LTS | amd64-microcode | no fix |
| Ubuntu 26.10 | amd64-microcode | no fix |