CVE-2021-27899

HIGH

Proofpoint Insider Threat Management < 7.11.1 - Improper Certificate Validation

Title source: llm
STIX 2.1

Description

The Proofpoint Insider Threat Management Agents (formerly ObserveIT Agent) for MacOS and Linux perform improper validation of the ITM Server's certificate, which enables a remote attacker to intercept and alter these communications using a man-in-the-middle attack. All versions before 7.11.1 are affected. Agents for Windows and Cloud are not affected.

References (1)

Core 1
Core References

Scores

CVSS v3 7.4
EPSS 0.0064
EPSS Percentile 45.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-295
Status published
Products (1)
proofpoint/insider_threat_management 7.9.0 - 7.9.3 (2 CPE variants)
Published Apr 06, 2021
Tracked Since Feb 18, 2026