CVE-2026-76886

C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - cve@gitlab.com

Published

2026-08-19

Last modified

2026-10-24

Weaknesses

CWE-122

Affected products

• Wireshark (Wireshark)
• Wireshark (Wireshark Foundation)

References

• https://www.wireshark.org/security/wnpa-sec-2026-75.html
• https://gitlab.com/wireshark/wireshark/-/work_items/21439
• https://gitlab.com/wireshark/wireshark/-/work_items/21446