{
  "id": "CVE-2015-3246",
  "url": "https://spydr.io/cve/CVE-2015-3246",
  "published": "2015-08-11T14:59:07.040Z",
  "modified": "2026-10-02T11:33:29.473Z",
  "score": 7.4,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "CISA ADP",
  "epss": 0.08434,
  "epss_percentile": 0.94848,
  "exploited": true,
  "kev": {
    "added": "2026-08-26",
    "due": "2026-09-09",
    "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.",
    "ransomware": "Unknown",
    "name": "Red Hat Libuser Race Condition Vulnerability",
    "notes": "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"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "redhat",
    "opensuse",
    "libuser project"
  ],
  "products": [
    "redhat enterprise linux",
    "opensuse",
    "libuser project libuser"
  ],
  "cwes": [
    "CWE-264",
    "CWE-367"
  ],
  "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.",
  "status": "Analyzed",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 7.4,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1482.html",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1483.html",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/76022",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.securitytracker.com/id/1033040",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://access.redhat.com/articles/1537873",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.exploit-db.com/exploits/44633/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3246",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}