HIGH CISA-KEV ACTIVELY EXPLOITED
CVE-2015-3246
Red Hat Libuser Race Condition Vulnerability
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.
Affected Products
- Red Hat: Libuser
References
- https://nvd.nist.gov/vuln/detail/CVE-2015-3246
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
This high severity vulnerability was published on 2026-08-26 via CISA-KEV. ⚠ This vulnerability is in the CISA Known Exploited Vulnerabilities (KEV) catalog — it is being actively exploited in the wild. EPSS score: 7.1% (top 6% of all CVEs by exploitation probability). Affected: Red Hat: Libuser.
Risk Timeline
CVE Disclosed2026-08-26 · 0 days ago
CISA KEV — Actively ExploitedU.S. federal agencies required to patch · confirmed threat-actor activity
Remediation Resources
NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2015-3246Related Vulnerabilities
| CVE | Title | Severity | CVSS |
|---|---|---|---|
| CVE-2015-5287 KEV | Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability | HIGH | — |
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