CVE-2026-5404: Wireshark

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

K12 RF5 file parser crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

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 2026-06-17.