AUGUST 4, 2026
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Case File

CVE-2021-26340

HIGH · CVSS 8.4 EPSS 0.24%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-10 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.4. See the original NVD description below for full technical details.

CVE
CVE-2021-26340
Severity
HIGH
CVSS
8.4
EPSS
0.24%

Original NVD 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).

Related CVEs

Other vulnerabilities affecting the same vendor(s)