Red Hat Libuser Race Condition Vulnerability
CVE-2015-3246 Exploited
Red Hat libuser contains a race condition vulnerability that allows authenticated local users to corrupt the /etc/passwd file to cause a denial of service or privilege escalation.
Being exploited in the wild
Catalogued 26 August 2026 · US federal remediation deadline 9 September 2026
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for…
Exploit code is also public: Metasploit · Exploit-DB · Public PoC
Assessment
- CVSS
- Not yet scored
- Severity
- Unscored
- Known exploited
- Yes — listed in the CISA KEV catalog
- Exploit availability
- CISA KEV, Metasploit, Exploit-DB, Public PoC
- Published
- 26 August 2026
- Last updated
- 26 August 2026
- Affected
- Red Hat · Libuser
At the source
References
Query this programmatically
Agents can read this through the MCP endpoint, or over HTTP:
curl https://www.cve.zerocrew.in/api/cve/CVE-2015-3246