CVE-2021-22159: Proofpoint Insider Threat Management

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Insider Threat Management Windows Agent Local Privilege Escalation Vulnerability The Proofpoint Insider Threat Management (formerly ObserveIT) Agent for Windows before 7.4.3, 7.5.4, 7.6.5, 7.7.5, 7.8.4, 7.9.3, 7.10.2, and 7.11.0.25 as well as versions 7.3 and earlier is missing authentication for a critical function, which allows a local authenticated Windows user to run arbitrary commands with the privileges of the Windows SYSTEM user. Agents for MacOS, Linux, and ITM Cloud are not affected.

Affected products

• Proofpoint Insider Threat Management: before 7.4.3 (fixed in 7.4.3); from 7.5.0, before 7.5.4 (fixed in 7.5.4); from 7.6.0, before 7.6.5 (fixed in 7.6.5); from 7.7.0, before 7.7.5 (fixed in 7.7.5); from 7.8.0, before 7.8.4 (fixed in 7.8.4); from 7.9.0, before 7.9.3 (fixed in 7.9.3); …

Published 2021-01-26. Last modified 2026-06-17.