CVE-2023-31347
moderate-risk
Published 2024-02-13
Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity.
Do I need to act?
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0.05% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.9/10
Medium
NETWORK
/ LOW complexity
Affected Products (20)
Epyc 7663P Firmware
Epyc 7643P Firmware
Affected Vendors
References (2)
47
/ 100
moderate-risk
Severity
20/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
27/34 · High