Description
Insufficient Granularity of Access Control in SEV firmware could allow a privileged user with a malicious hypervisor to create a SEV-ES guest with an ASID in the range meant for SEV-SNP guests potentially resulting in a partial loss of confidentiality.
Scores
CVSS v4
4.6
EPSS
0.0002
EPSS Percentile
4.8%
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1220
Status
published
Products (2)
AMD/AMD EPYC™ 9005 Series Processors
TurinPI 1.0.0.6
AMD/AMD EPYC™ Embedded 9005 Series Processors
EmbTurinPI-SP5_1.0.0.1
Published
Feb 10, 2026
Tracked Since
Feb 18, 2026