CVE detail
CVE-2015-3246: Red Hat Libuser Race Condition Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
Red Hat · Libuser
- Date added (KEV)
- Aug 26, 2026
- CISA due date
- Sep 09, 2026
- Ransomware campaign use
- Unknown
Required action
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 evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Vendor fix: Vendor advisory
Scorifya interpretation
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Plain English
Technical detail
From CISA
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.
This vulnerability affects an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://access.redhat.com/articles/1537873 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2015-3246
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- http://rhn.redhat.com/errata/RHSA-2015-1482.htmlVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1483.htmlVendor Advisory
- https://access.redhat.com/articles/1537873MitigationVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1482.htmlVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1483.htmlVendor Advisory
- https://access.redhat.com/articles/1537873MitigationVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.htmlBroken Link
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.htmlMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/76022Third Party Advisory
- http://www.securitytracker.com/id/1033040Third Party Advisory
- https://www.exploit-db.com/exploits/44633/Third Party AdvisoryVDB Entry
- https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txtExploit
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.htmlBroken Link
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.htmlMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/76022Third Party Advisory
- http://www.securitytracker.com/id/1033040Third Party Advisory
- https://www.exploit-db.com/exploits/44633/Third Party AdvisoryVDB Entry
- https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txtExploit
- https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246US Government Resource
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