CVE-2023-31355
high-risk
Published 2024-08-05
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
Do I need to act?
-
0.80% 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
6
CVSS 6.0/10
Medium
LOCAL
/ LOW complexity
Affected Products (20)
Epyc 7203 Firmware
Epyc 7203P Firmware
Epyc 7303 Firmware
Epyc 7303P Firmware
Affected Vendors
References (1)
52
/ 100
high-risk
Severity
20/34 · Moderate
Exploitability
3/34 · Minimal
Exposure
29/34 · Critical