All vulnerabilities
CVE-2015-3246

Red Hat Libuser Race Condition Vulnerability

Red Hat LibuserOperating systems
Open in ThreatlineRecord JSON
CVSS
7.4High
ExploitationExploited in the wildAdded to KEV 26 Aug 2026CISA KEV
Exploit odds (EPSS)8.50%Chance of exploitation activity in the next 30 days, higher than 95% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline9 Sep 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply 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 evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 24 Jul 2015Exploit code publicMetasploit
  2. 11 Aug 2015, 14:00 UTCPublishedCVE List
  3. 26 Aug 2026Added to CISA KEVCISA KEV

Public exploit code and templates 4

  • Exploit moduleLibuser roothelper Privilege Escalation 24 Jul 2015Metasploit
  • Local exploitLibuser - 'roothelper' Local Privilege Escalation (Metasploit) 16 May 2018Exploit-DB
  • Local exploitLibuser - 'roothelper' Local Privilege Escalation (Metasploit) 16 May 2018Exploit-DB
  • Dos exploitLibuser Library - Multiple Vulnerabilities 27 Jul 2015Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 6