AUGUST 4, 2026
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Case File

CVE-2021-3847

HIGH · CVSS 7.8 EPSS 0.46%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-04-01 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Linux.

CVE
CVE-2021-3847
Severity
HIGH
CVSS
7.8
EPSS
0.46%
Linux

Original NVD Description

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system.

Related CVEs

Other vulnerabilities affecting the same vendor(s)