CVE-2021-3552: Bitdefender Endpoint Security Tools

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService component of Bitdefender Endpoint Security Tools allows an attacker to proxy requests to the relay server. This issue affects: Bitdefender Endpoint Security Tools versions prior to 6.6.27.390; versions prior to 7.1.2.33. Bitdefender GravityZone 6.24.1-1.

Affected products

• Bitdefender Endpoint Security Tools: before 6.2.21.160 (fixed in 6.2.21.160); from 6.6.27.0, before 6.6.27.390 (fixed in 6.6.27.390); from 7.0.0.00, before 7.1.2.33 (fixed in 7.1.2.33)
• Bitdefender Gravityzone: version 6.24.1-1 only

Published 2021-11-24. Last modified 2026-06-17.