CVE-2020-8884: Proofpoint Insider Threat Management

High severity, CVSS 8.8. EPSS: 4.3% chance of exploitation in the next 30 days.

rcdsvc in the Proofpoint Insider Threat Management Windows Agent (formerly ObserveIT Windows Agent) before 7.9 allows remote authenticated users to execute arbitrary code as SYSTEM because of improper deserialization over named pipes.

Affected products

• Proofpoint Insider Threat Management: from 6.3, before 7.4.2 (fixed in 7.4.2); from 7.5.0, before 7.5.3 (fixed in 7.5.3); from 7.6.0, before 7.6.4 (fixed in 7.6.4); from 7.7.0, before 7.7.4 (fixed in 7.7.4); from 7.8.0, before 7.8.3 (fixed in 7.8.3)

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