CVE-2021-3823: Bitdefender Gravityzone

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the UpdateServer component of Bitdefender GravityZone allows an attacker to execute arbitrary code on vulnerable instances. This issue affects: Bitdefender GravityZone versions prior to 3.3.8.249.

Affected products

• Bitdefender Gravityzone: before 3.3.8.249 (fixed in 3.3.8.249)

Published 2021-10-28. Last modified 2026-06-17.