Improper access control in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to bypass Reverse Map Table (RMP) protections, potentially impacting the integrity of Secure Encrypted Virtualization-Secure Nested Paging (SEV-SNP) guest memory.
Show the promptExplain CVE-2025-0027 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2025-0027?via=ask-ai-copy and https://cve.bz/cve/CVE-2025-0027?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2025-0027 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.
Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Affected
amd:amd epyc™ 7003 series processors
amd:amd epyc™ 8004 series processors
amd:amd epyc™ 9004 series processors
amd:amd epyc™ 9005 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 "bergamo")
amd:amd epyc™ embedded 9004 series processors (formerly codenamed "genoa")