CVE intelligence and bounded remediation

CVE-2021-26315 — Amd Epyc 7003 Firmware security vulnerability

High CVSS 7.8

When the AMD Platform Security Processor (PSP) boot rom loads, authenticates, and subsequently decrypts an encrypted FW, due to insufficient verification of the integrity of decrypted image, arbitrary code may be executed in the PSP when encrypted firmware images are used.

Severity
High
CVSS
7.8 (3.1)
Published
2021-11-16
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-345

Affected products

  • amd / epyc_7003_firmware
  • amd / epyc_72f3_firmware
  • amd / epyc_7313_firmware
  • amd / epyc_7313p_firmware
  • amd / epyc_7343_firmware
  • amd / epyc_73f3_firmware

Showing 6 representative product identities from 20 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Supply-chain, dependency, build, and update integrity

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

Check exposure

  • Trace affected packages, source archives, build actions, plugins, installers, and updates from declared source to deployed artifact.
  • Confirm provenance, signatures or digests, namespace ownership, lockfile resolution, registry configuration, and build-runner trust boundaries.
  • Inventory direct, transitive, vendored, generated, and bundled copies across releases and distribution channels.

Remediate safely

  • Move to a maintained trusted artifact or remove the dependency; pin immutable identities and verify provenance and integrity before use.
  • Regenerate lockfiles and artifacts in a clean isolated build, minimize build credentials and network access, and produce an updated software bill of materials.
  • Require reviewed update policy, protected publishing, and reproducible or independently attestable builds where supported.

Authoritative sources

Complete CVE record and remediation plan

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