VULNERABILITY INTELLIGENCE

CVE-2021-27899

CVSS score7.4 HIGH
EPSS probability0.63%
CISA KEVNot currently listed
Published2021-04-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

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.

Weakness classification

  • nvd@nist.gov: CWE-295

Primary references