Description
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
Affected products
wireshark: wireshark
References2
- gitlab.com/wireshark/wireshark/-/work_items/21480 ExploitMitigationVendor Advisory
- www.wireshark.org/security/wnpa-sec-2026-89.html Vendor Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 24 · as of 10 November 2026
- CWE
- CWE-121
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