CVE-2019-18631: Centrify Authentication Service

High severity, CVSS 7.8. EPSS: 1.2% chance of exploitation in the next 30 days.

The Windows component of Centrify Authentication and Privilege Elevation Services 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.5.0, 3.5.1 (18.8), 3.5.2 (18.11), and 3.6.0 (19.6) does not properly handle an unspecified exception during use of partially trusted assemblies to serialize input data, which allows attackers to execute arbitrary code inside the Centrify process via (1) a crafted application that makes a pipe connection to the process and sends malicious serialized data or (2) a crafted Microsoft Management Console snap-in control file.

Affected products

• Centrify Authentication Service: version 3.4.0 only; version 3.4.1 only; version 3.4.2 only; version 3.4.3 only; version 3.5.0 only; version 3.5.1 only; …
• Centrify Privilege Elevation Service: version 3.4.0 only; version 3.4.1 only; version 3.4.2 only; version 3.4.3 only; version 3.5.0 only; version 3.5.1 only; …

Published 2019-11-05. Last modified 2026-06-17.