CVE-2026-96421: Wireshark

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

USB HID protocol dissector infinite loop and memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Affected products

• Wireshark Wireshark: from 4.4.0, before 4.4.19 (fixed in 4.4.19); from 4.6.0, before 4.6.9 (fixed in 4.6.9)

Published 2026-09-29. Last modified 2026-10-06.