KEV Entry

CVE-2015-3246

Known Exploited Vulnerability Entry CISA

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Entry Details
Confirmed Exploited

CVE-2015-3246

2026-08-26 00:00 UTC

Timestamps

2026-08-26

2026-08-26

Scope

Red Hat Libuser Race Condition Vulnerability | Affected: Red Hat / Libuser | Description: 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. | 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. | Due date: 2026-09-09 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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

References
  • {'id': 'CVE-2015-3246', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2015-3246'}

fcc1e678-f811-44d4-930d-b5eb74bc2fe4

CISA
405284c2-e461-4670-8979-7fd2c9755a60

2026-08-26 18:00 UTC

2026-08-26 18:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [],
  "date_added": "2026-08-26",
  "due_date": "2026-09-09",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Libuser",
  "vendorProject": "Red Hat",
  "vulnerabilityName": "Red Hat Libuser Race Condition Vulnerability"
}
 -
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