CVE-2025-61971

Summary

Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to modify MMIO routing configurations, potentially resulting in loss of SEV-SNP guest integrity.

Affected Software

VendorProductVersion RangeStatus
AMDAMD EPYC™ 9004 Series ProcessorsGenoaPI_1.0.0.Hunaffected
AMDAMD EPYC™ 7003 Series ProcessorsMilanPI-SP3_1.0.0.Junaffected
AMDAMD EPYC™ 9005 Series ProcessorsTurinPI_1.0.0.8unaffected
AMDAMD EPYC™ 8004 Series ProcessorsGenoaPI_1.0.0.Hunaffected
AMDAMD EPYC™ Embedded 7003 Series ProcessorsEmbMilanPI-SP3 1.0.0.Dunaffected
AMDAMD EPYC™ Embedded 9004 Series Processors (formerly codenamed “Genoa”)EmbGenoaPI-SP5 1.0.0.Dunaffected
AMDAMD EPYC™ Embedded 9004 Series Processors (formerly codenamed “Bergamo”)EmbGenoaPI-SP5 1.0.0.Dunaffected
AMDAMD EPYC™ Embedded 8004 Series ProcessorsEmbGenoaPI-SP5 1.0.0.Dunaffected
AMDAMD EPYC™ Embedded 9005 Series ProcessorsEmbeddedTurinPI_SP5_1004unaffected

Weaknesses

  • CWE-1233: CWE-1233 Security-Sensitive Hardware Controls with Missing Lock Bit Protection

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References