CVE-2026-5405: Wireshark

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

Affected products

• Wireshark Wireshark: from 4.4.0, before 4.4.15 (fixed in 4.4.15); from 4.6.0, before 4.6.5 (fixed in 4.6.5)

Published 2026-05-01. Last modified 2026-07-15.