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wnpa-sec-2026-67 · RDP protocol dissector crash

Summary

Name: RDP protocol dissector crash

Docid: wnpa-sec-2026-67

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 21396.

Details

Description

The RDP 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 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.