wnpa-sec-2026-55 · SSH protocol dissector crash
Summary
Name: SSH protocol dissector crash
Docid: wnpa-sec-2026-55
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 21378.
CVE-2026-15171.
Details
Description
The SSH protocol dissector could crash.
Impact
Discovered by Dmitrijs Trizna. 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.
