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Case File

CVE-2021-38199

MEDIUM · CVSS 6.5 EPSS 1.24% Public Exploit

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

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It affects Linux. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-38199
Severity
MEDIUM
CVSS
6.5
EPSS
1.24%
Linux

Original NVD Description

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.

Related CVEs

Other vulnerabilities affecting the same vendor(s)