CVE-2021-35252: SolarWinds Serv-U

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.

Affected products

• SolarWinds Serv-U: before 15.3.2 (fixed in 15.3.2)

Published 2022-12-16. Last modified 2026-06-17.