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TI-2023-07032 Aliases CVE-2023-20582GHSA-7vx3-5mq4-mccg

Improper handling of invalid nested page table entries in the IOMMU may allow a…

Priority LOW 23CWE-1284Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00172 6th percentileScored 2026-11-07
Fix Fixed AMD EPYC™ 9004 Processors (AMD): GenoaPI 1.0.0.C, SEV FW1.55.36AMD EPYC™ Embedded 9004 (AMD): EmbGenoaPI-SP5 1.0.0.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AMDAMD EPYC™ 9004 Processors—GenoaPI 1.0.0.C, SEV FW1.55.36Patch availableCNA
AMDAMD EPYC™ Embedded 9004—EmbGenoaPI-SP5 1.0.0.7Patch availableCNA
  • AMD EPYC™ 9004 Processors VendorAMD Affected — Fixed in GenoaPI 1.0.0.C, SEV FW1.55.36 Patch available CNA
  • AMD EPYC™ Embedded 9004 VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.7 Patch available CNA

Remediation

  • Fix · CNA AMD EPYC™ 9004 Processors (AMD) Fixed in GenoaPI 1.0.0.C, SEV FW1.55.36
  • Fix · CNA AMD EPYC™ Embedded 9004 (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-20582
  2. 2026-10-03 Alias added: GHSA-7vx3-5mq4-mccg

References

Other 2

  • TI-2026-36341 AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization CVSS 4.0CRITICAL 9.2
  • TI-2023-07046 Improper privilege management in AMD Radeon™ RX 5000 Series Graphics Cards CVSS 3.1HIGH 7.8
  • TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
  • TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
  • TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
  • TI-2022-07839 Improper access control in System Management Mode (SMM) may allow an attacker to write to… CVSS 3.1CRITICAL 9.8
See all 508 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences