CVE-2018-18226: Debian Linux

High severity, CVSS 7.5. EPSS: 3.2% chance of exploitation in the next 30 days.

In Wireshark 2.6.0 to 2.6.3, the Steam IHS Discovery dissector could consume system memory. This was addressed in epan/dissectors/packet-steam-ihs-discovery.c by changing the memory-management approach.

Affected products

• Debian Debian Linux: version 9.0 only
• Wireshark Wireshark: from 2.6.0, up to and including 2.6.3

Published 2018-10-12. Last modified 2026-06-17.