CVE-2020-15297: Bitdefender Update Server

Critical severity, CVSS 9.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Insufficient validation in the Bitdefender Update Server and BEST Relay components of Bitdefender Endpoint Security Tools versions prior to 6.6.20.294 allows an unprivileged attacker to bypass the in-place mitigations and interact with hosts on the network. This issue affects: Bitdefender Update Server versions prior to 6.6.20.294.

Affected products

• Bitdefender Update Server: before 6.6.20.294 (fixed in 6.6.20.294)

Published 2020-11-09. Last modified 2026-06-17.