CVE-2011-4100: Wireshark

Medium severity, CVSS 4.3. EPSS: 2.3% chance of exploitation in the next 30 days.

The csnStreamDissector function in epan/dissectors/packet-csn1.c in the CSN.1 dissector in Wireshark 1.6.x before 1.6.3 does not initialize a certain variable, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.

Affected products

• Wireshark Wireshark: version 1.6.0 only; version 1.6.1 only; version 1.6.2 only

Published 2011-11-03. Last modified 2026-06-16.