CVE-2019-5719: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.8% chance of exploitation in the next 30 days.

In Wireshark 2.6.0 to 2.6.5 and 2.4.0 to 2.4.11, the ISAKMP dissector could crash. This was addressed in epan/dissectors/packet-isakmp.c by properly handling the case of a missing decryption data block.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Wireshark Wireshark: from 2.4.0, up to and including 2.4.11; from 2.6.0, up to and including 2.6.5

Published 2019-01-08. Last modified 2026-06-17.