VULNERABILITY INTELLIGENCE

CVE-2021-26340

CVSS score8.4 HIGH
EPSS probability0.25%
CISA KEVNot currently listed
Published2021-12-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Description

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references