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wnpa-sec-2026-69 · Dissection engine reassembly crash

Summary

Name: Dissection engine reassembly crash

Docid: wnpa-sec-2026-69

Date: August 12, 2026

Affected versions: 4.6.0 to 4.6.7, 4.4.0 to 4.4.17

Fixed versions: 4.6.8, 4.4.18

References:

Wireshark issue xxxx.

Details

Description

The dissection engine could crash while reassembling packets.

Impact

Discovered by Daniel Birtwhistle. We are unaware of any exploits for this issue. It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet capture file.

Resolution

Upgrade to Wireshark 4.6.8, 4.4.18 or later.