CVE-2016-6273: Citrix License Server

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

The lmadmin component in Flexera FlexNet Publisher (aka Flex License Manager) before 2015 SP5 and 2016 before R1 SP1, as used by Citrix License Server for Windows before 11.14.0.1 and Citrix License Server VPX before 11.14.0.1, allows remote attackers to cause a denial of service (crash) via a type 2F packet with a '01 19' opcode.

Affected products

• Citrix License Server: up to and including 11.14.0.0
• Citrix License Server Vpx: up to and including 11.14.0.0

Published 2016-10-07. Last modified 2026-06-17.