CVE-2023-31346
Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.
- Published
- Feb 13, 2024
- Updated
- Mar 20, 2025
- Assigning CNA
- AMD
- Evidence observed
- Aug 5, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:NLow · next 30 days
- Percentile
- 23.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.
Sources
1Proof-of-concept demonstrating memory leaks in AMD SEV-SNP firmware guest message headers and CPUID request, enabling extraction of sensitive guest data from physical memory.
Responsible use
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