CVSS 4.0
4.0 mediumCVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:NCVE-2026-40669
Medium (4.0) in amd.
An off-by-one error in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to corrupt the Reverse Map Table (RMP) table, potentially resulting in loss of guest memory integrity.
Severity
- CWE
- CWE-193 Off-by-one Error
- Published
- Assigned by
- AMD (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- amd:amd epyc™ 7003 series processors
- amd:amd epyc™ 8004 series processors
- amd:amd epyc™ 9004 series processors
- amd:amd epyc™ embedded 7003 series processors
- amd:amd epyc™ embedded 8004 series processors
- amd:amd epyc™ embedded 9004 series processors (formerly codenamed "genoa")
- amd:amd epyc™ embedded 9004 series processors (formerly codenamed "bergamo")