CVE-2018-10240: SolarWinds Serv-U

High severity, CVSS 7.3. EPSS: 1% chance of exploitation in the next 30 days.

SolarWinds Serv-U MFT before 15.1.6 HFv1 assigns authenticated users a low-entropy session token that can be included in requests to the application as a URL parameter in lieu of a session cookie. This session token's value can be brute-forced by an attacker to obtain the corresponding session cookie and hijack the user's session.

Affected products

• SolarWinds Serv-U: up to and including 15.1.6

Published 2018-05-16. Last modified 2026-06-17.