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wnpa-sec-2026-57 · IEEE 802.11 protocol dissector crash

Summary

Name: IEEE 802.11 protocol dissector crash

Docid: wnpa-sec-2026-57

Date: July 8, 2026

Affected versions: 4.6.0 to 4.6.6, 4.4.0 to 4.4.16

Fixed versions: 4.6.7, 4.4.17

References:

Wireshark issue 21391.
CVE-2026-15166.

Details

Description

The IEEE 802.11 protocol dissector could crash.

Impact

Discovered by Claude and Ada Logics. We are unaware of any exploits for this issue. It may be possible to make Wireshark crash by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 4.6.7, 4.4.17 or later.