AUGUST 5, 2026
Live Feed
Back to database
Case File

CVE-2021-4149

MEDIUM · CVSS 5.5 EPSS 0.40%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-23 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux. It may lead to a denial-of-service condition.

CVE
CVE-2021-4149
Severity
MEDIUM
CVSS
5.5
EPSS
0.40%
Linux

Original NVD Description

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

Related CVEs

Other vulnerabilities affecting the same vendor(s)