CVE-2018-14438: Wireshark

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

In Wireshark through 2.6.2, the create_app_running_mutex function in wsutil/file_util.c calls SetSecurityDescriptorDacl to set a NULL DACL, which allows attackers to modify the access control arbitrarily.

Affected products

• Wireshark Wireshark: up to and including 2.6.2

Published 2018-07-20. Last modified 2026-06-17.