wnpa-sec-2026-17 · RDP dissector crash
Summary
Name: RDP dissector crash
Docid: wnpa-sec-2026-17
Date: April 29, 2026
Affected versions: 4.6.0 to 4.6.4, 4.4.0 to 4.4.14
Fixed versions: 4.6.5, 4.4.15
References:
Wireshark issue 21105.
CVE-2026-5405.
Details
Description
The RDP dissector could crash and possibly execute arbitrary code.
Impact
Discovered by Duc Anh Nguyen. We are unaware of any exploits for this issue. It may be possible to make Wireshark crash and possibly execute arbitrary code by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.
Resolution
Upgrade to Wireshark 4.6.5, 4.4.15 or later.
