CVE-2018-9266: Wireshark

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, epan/dissectors/packet-isup.c has a memory leak.

Affected products

• Wireshark Wireshark: from 2.2.0, up to and including 2.2.13; from 2.4.0, up to and including 2.4.5

Published 2018-04-04. Last modified 2026-06-17.