X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Sep 29, 2026 · NIST NVD

   Detected

   X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

2. Oct 14, 2026 · NIST NVD

   Updated

   X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Affected

• cpe wireshark/wiresharkversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-96423

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-96423

  30-day exploitation probability 0.1%

  first.org
• NIST NVDVulnerability recordCVE-2026-96423

  X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

  nvd.nist.gov

References

• Exploit · gitlab.com
• Vendor Advisory · wireshark.org