CVE-2021-4190: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file

Affected products

• Fedoraproject Fedora: version 34 only; version 35 only
• Wireshark Wireshark: from 3.4.0, before 3.4.12 (fixed in 3.4.12); version 3.6.0 only

Published 2021-12-30. Last modified 2026-06-17.