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PatchSiren cyber security CVE debrief

CVE-2015-3246 Red Hat CVE debrief

This PatchSiren debrief is based on the supplied source corpus for CVE-2015-3246, a race condition vulnerability in Red Hat Libuser. The CVE record was published on 2026-08-26T00:00:00.000Z and has not been modified since then. The vulnerability has been added to the CISA Known Exploited Vulnerabilities catalog. Defenders should assess exposure and apply mitigations according to vendor instructions. The CISA catalog and CVE Program record provide official information on this vulnerability.

Vendor
Red Hat
Product
Libuser
CVSS
HIGH 7.4
CISA KEV
Listed
Original CVE published
2015-08-11
Original CVE updated
2026-10-01
Advisory published
2015-08-11
Advisory updated
2026-10-01

Who should care

Defenders responsible for Red Hat Libuser deployments should assess exposure and apply mitigations according to vendor instructions. This includes verifying exposure to CVE-2015-3246 in Red Hat Libuser deployments and applying mitigations according to vendor instructions. Defenders should prioritize verification of exposure and apply mitigations according to vendor instructions due to known exploitation.

Why it matters

CVE-2015-3246 is a race condition vulnerability in Red Hat Libuser that requires verification of exposure and application of mitigations according to vendor instructions.

  • Verify exposure to CVE-2015-3246 in Red Hat Libuser deployments
  • Apply mitigations according to vendor instructions

Technical summary

CVE-2015-3246 is a race condition vulnerability in Red Hat Libuser. The vulnerability has been added to the CISA Known Exploited Vulnerabilities catalog. Defenders should assess exposure and apply mitigations according to vendor instructions. The CISA catalog and CVE Program record provide official information on this vulnerability. The vulnerability requires verification of exposure and application of mitigations according to vendor instructions.

Defensive priority

Defenders should prioritize verification of exposure and apply mitigations according to vendor instructions due to known exploitation.

Recommended defensive actions

  • Verify exposure to CVE-2015-3246 in Red Hat Libuser deployments
  • Apply mitigations according to vendor instructions
  • Ensure compliance with CISA's BOD 26-04 guidance

Evidence notes

The CISA Known Exploited Vulnerabilities catalog and CVE Program record provide official information on this vulnerability. The vulnerability has been added to the CISA Known Exploited Vulnerabilities catalog. The CVE record was published on 2026-08-26T00:00:00.000Z and has not been modified since then. Defenders should verify exposure and apply mitigations according to vendor instructions.

Sources and references

Verified primary and authoritative sources

  • CVE-2015-3246 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2015-3246

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2015-3246 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2015-3246

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.