CVE-2026-76881

NULL Pointer Dereference in Wireshark

State: Published
Severity: 4.7 Medium
Published: Aug 19, 2026
Updated: Aug 20, 2026
Reserved: Aug 19, 2026

Description

CMS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

Scores

CVSS	Score	Vector	Source
3.1	4.7 Medium	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H	GitLab

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
WiresharkWireshark Foundation	4.6.0 to before 4.6.8Affected 4.4.0 to before 4.4.18Affected

References

https://www.wireshark.org/security/wnpa-sec-2026-76.html
https://gitlab.com/wireshark/wireshark/-/work_items/21446

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