CVE-2017-9343: Wireshark

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

In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the MSNIP dissector misuses a NULL pointer. This was addressed in epan/dissectors/packet-msnip.c by validating an IPv4 address.

Affected products

• Wireshark Wireshark: from 2.0.0, up to and including 2.0.12; from 2.2.0, up to and including 2.2.6

Published 2017-06-02. Last modified 2026-06-17.