What’s Vulnerable › Vulnerabilities

CVE-2023-20582

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-11 · updated 2026-06-17
• Weakness: CWE-1284

Description

Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry (PTE) faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity.

Affected products

• AMD EPYC™ 9004 Processors: all versions
• AMD EPYC™ Embedded 9004: all versions

References

• https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3009.html
• https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5004.html

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