CVE-2021-22173: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

Memory leak in USB HID dissector in Wireshark 3.4.0 to 3.4.2 allows denial of service via packet injection or crafted capture file

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only
• Oracle ZFS Storage Appliance: version 8.8 only
• Wireshark Wireshark: from 3.4.0, before 3.4.3 (fixed in 3.4.3)

Published 2021-02-17. Last modified 2026-06-17.