CVE-2018-11455: Siemens Automation License Manager

High severity, CVSS 8.8. EPSS: 5.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in Automation License Manager 5 (All versions < 5.3.4.4), Automation License Manager 6 (All versions < 6.0.1). A directory traversal vulnerability could allow a remote attacker to move arbitrary files, which can result in code execution, compromising confidentiality, integrity and availability of the system. Successful exploitation requires a network connection to the affected device. The attacker does not need privileges or special conditions of the system, but user interaction is required.

Affected products

• Siemens Automation License Manager: after 5.0, before 5.3.4.4 (fixed in 5.3.4.4); from 6.0, before 6.0.1 (fixed in 6.0.1)

Published 2018-08-07. Last modified 2026-06-17.