CVE-2021-31538: Lancom-Systems Lcos Fx

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

LANCOM R&S Unified Firewall (UF) devices running LCOS FX 10.5 allow Relative Path Traversal.

Affected products

• Lancom-Systems Lcos Fx: version 10.5 only

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