CVE-2017-9345: Wireshark

High severity, CVSS 7.5. EPSS: 3% 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 DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.

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.