Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2015-3246

CVE-2015-3246HIGH

n/a n/a — libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   N   N  U  H  H  H    7.4   .0850   95.0   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Apr 10  Reserved by redhat
  Aug 11  Published (CNA: redhat)
  Aug 26  ADDED TO KEV — CVE-2015-3246. Remediation due September 9, 2026.
  Sep 10  DUE DATE PASSED — CVE-2015-3246. CISA remediation deadline was September 9, 2026; still in catalog.
  Oct 1   RESCORED — CVE-2015-3246. CVSS 5.1 → 7.4 (NVD).

CWE-264, CWE-367 · CNA: redhat · CVSS v3.1 · 12 references · NVD status: Analyzed · KEV due September 9, 2026

Description

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.

Lifecycle

Complete event history — 5 events, chronological
Date	Event	Detail
April 10, 2015	Reserved	Reserved by redhat
August 11, 2015	Published	Published (CNA: redhat)
August 26, 2026	KEV ADDED	ADDED TO KEV — CVE-2015-3246. Remediation due September 9, 2026.
September 10, 2026	DUE DATE PASSED	DUE DATE PASSED — CVE-2015-3246. CISA remediation deadline was September 9, 2026; still in catalog.
October 1, 2026	RESCORED	RESCORED — CVE-2015-3246. CVSS 5.1 → 7.4 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-264 · CWE-367

References (12)

http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html [Broken Link]
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html [Broken Link]
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html [Mailing List, Third Party Advisory]
http://rhn.redhat.com/errata/RHSA-2015-1482.html [Vendor Advisory]
http://rhn.redhat.com/errata/RHSA-2015-1483.html [Vendor Advisory]
http://www.securityfocus.com/bid/76022 [Third Party Advisory]
http://www.securitytracker.com/id/1033040 [Third Party Advisory]
https://access.redhat.com/articles/1537873 [Mitigation, Vendor Advisory]
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-2015-3246 [US Government Resource]
https://www.exploit-db.com/exploits/44633/ [Third Party Advisory, VDB Entry]
https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt [Exploit]

Authoritative record: CVE-2015-3246 at cve.org

Weaknesses: CWE-264 · CWE-367

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2015-3246 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.