CVSS 4.0
6.0 mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NCVE-2026-0480
Medium (6.0) in amd.
Missing Authentication for Critical Function in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to forge SEV-TIO guest request messages potentially compromising SEV-SNP guest memory integrity and confidentiality.
Severity
- CWE
- CWE-306 Missing Authentication for Critical Functionality
- OWASP Top 10
- A07:2025 Authentication Failures
- Published
- Assigned by
- AMD (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- amd:amd epyc™ 8005 series processors
- amd:amd epyc™ 9005 series processors
- amd:amd epyc™ embedded 9005 series processors
Attack patterns (CAPEC)
- CAPEC-12 Choosing Message Identifier Likelihood: High · Severity: High
- CAPEC-36 Using Unpublished Interfaces or Functionality Likelihood: Medium · Severity: High
- CAPEC-62 Cross Site Request Forgery Likelihood: High · Severity: Very High
- CAPEC-166 Force the System to Reset Values Severity: Medium
- CAPEC-216 Communication Channel Manipulation
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.