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CVE-2026-20043

9.0 critical SSVC exploitation: none Awaiting Analysis
NVD · CVE.org

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20043 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.

Fix

Vendor advisories in the News 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 9

  1. StatusPublished → Awaiting AnalysisNVD modified 2026-10-26 10:10
  2. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 19:10
  3. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 23:18
  4. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 13:37
  5. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 14:17
  6. StatusAwaiting Analysis → PublishedNVD modified 2026-10-21 16:12
  7. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 18:54
  8. StatusReceived → PublishedNVD modified 2026-10-21 16:12
  9. First seenCVSS 9.0NVD modified 2026-10-21 17:18

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1