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
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://gitlab.com/wireshark/wireshark/-/work_items/21439 Exploit, Mitigation, Vendor Advisory
- https://www.wireshark.org/security/wnpa-sec-2026-75.html Vendor Advisory
- https://gitlab.com/wireshark/wireshark/-/work_items/21446 Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · wiresharkNVD modified 2026-10-23 23:10
Affected (CPE criteria) 1
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
References 3
- https://gitlab.com/wireshark/wireshark/-/work_items/21439 Exploit, Mitigation, Vendor Advisory
- https://www.wireshark.org/security/wnpa-sec-2026-75.html Vendor Advisory
- https://gitlab.com/wireshark/wireshark/-/work_items/21446 Exploit, Mitigation, Vendor Advisory