Wireshark 4.6.6 Released With Fix for Dissector Crash via Malformed Packet Injection
ID: 7d6269f0-6d46-5f9e-bce4-0f2aa2237802
STIX ID: report--7d6269f0-6d46-5f9e-bce4-0f2aa2237802
Feed Name: cybersecurityNews.com
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Wireshark 4.6.6 fixes a critical ROHC protocol dissector crash (wnpa-sec-2026-51) and a MACsec global-buffer-overflow discovered via May 2026 fuzzing, which could allow malformed packets or crafted capture files to crash the application; the release also resolves numerous Windows stability, compatibility, and other parsing bugs and ships with Npcap 1.88—users processing untrusted captures should update immediately.
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