AUGUST 4, 2026
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Case File

CVE-2021-20181

HIGH · CVSS 7.5 EPSS 0.32%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-13 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.

CVE
CVE-2021-20181
Severity
HIGH
CVSS
7.5
EPSS
0.32%

Original NVD Description

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

Related CVEs

Other vulnerabilities affecting the same vendor(s)