CVE intelligence and bounded remediation

CVE-2023-20591 — Amd Epyc 8024Pn Firmware security vulnerability

Critical CVSS 10

Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker to read or modify hypervisor memory, potentially resulting in loss of confidentiality, integrity, and availability.

Severity
Critical
CVSS
10 (3.1)
Published
2024-08-13
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-665

Affected products

  • amd / epyc_8024pn_firmware
  • amd / epyc_8024p_firmware
  • amd / epyc_8124pn_firmware
  • amd / epyc_8124p_firmware
  • amd / epyc_8224pn_firmware
  • amd / epyc_8224p_firmware

Showing 6 representative product identities from 65 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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