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CVE-2014-6278: GNU Bash OS Command Injection Vulnerability

criticalknown exploitedpublic exploitCVE-2014-6278
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
GNU Bash contains an OS command injection vulnerability which allows remote attackers to execute arbitrary commands via a crafted environment.

CSIRTS triage

vendor: GNUproduct: BashCode injection
What
The vulnerability allows remote attackers to execute arbitrary commands via a crafted environment.
Who is affected
Users of GNU Bash in affected environments.
Urgency
Immediate action is required due to active exploitation and critical severity.
Action
Update to the latest version of GNU Bash.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-10-02
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2014-6278

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2014-6278coverage & exploitation statusNVD · CVE.org

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