VULNERABILITY INTELLIGENCE

CVE-2021-26320

CVSS score5.5 MEDIUM
EPSS probability0.19%
CISA KEVNot currently listed
Published2021-11-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP

Weakness classification

  • psirt@amd.com: CWE-295
  • nvd@nist.gov: CWE-295

Primary references