CVE-2014-7169

CRITICAL9.8

CISA KEV

Published 2014-09-25 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2014-7169 is a critical-severity (CVSS 9.8) vulnerability in GNU Bourne-Again Shell (Bash). CISA added it to the Known Exploited Vulnerabilities catalog on January 28, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by July 28, 2022. CISA does not currently list it as used in ransomware campaigns. GNU has 5 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 5 known-exploited GNU vulnerabilities →

Description

GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: GNU — Bourne-Again Shell (Bash)

Name: GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

Date added: 2022-01-28 · Due: 2022-07-28

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited GNU vulnerabilities

Most recently added to CISA KEV

CVE-2026-24061
InetUtils — GNU InetUtils Argument Injection Vulnerability
added 2026-01-26
CVE-2014-6278
GNU Bash — GNU Bash OS Command Injection Vulnerability
added 2025-10-02
CVE-2023-4911
GNU C Library — GNU C Library Buffer Overflow Vulnerability
added 2023-11-21
CVE-2014-6271
Bourne-Again Shell (Bash) — GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
added 2022-01-28

View all →

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