CVE-2016-6504: Wireshark

Medium severity, CVSS 5.9. EPSS: 6.6% chance of exploitation in the next 30 days.

epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.

Affected products

• Wireshark Wireshark: version 1.12.0 only; version 1.12.1 only; version 1.12.2 only; version 1.12.3 only; version 1.12.4 only; version 1.12.5 only; …

Published 2016-08-06. Last modified 2026-06-17.