CVE-2025-65403: HFIREF0X Lightftp

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A buffer overflow in the g_cfg.MaxUsers component of LightFTP v2.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Affected products

• HFIREF0X Lightftp: version 2.0 only

Published 2025-12-01. Last modified 2026-06-17.