CVE-2021-26409 (GCVE-0-2021-26409)
Vulnerability from cvelistv5 – Published: 2023-01-10 20:56 – Updated: 2025-04-09 14:52
VLAI
EPSS
VEX
Summary
Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-09 14:52 UTC
CWE
- n/a
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.amd.com/en/corporate/product-security… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| AMD | 3rd Gen EPYC |
Affected:
various
|
guessed |
Date Public
2023-01-10 17:30
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