CVE-2019-25660: Hainsoft Lanhelper

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

LanHelper 1.74 contains a local buffer overflow vulnerability that allows attackers to crash the application by sending excessively long input strings. Attackers can exploit the Form Send Message feature by pasting 6000 bytes of data into the Message text field to trigger a denial of service condition.

Affected products

• Hainsoft Lanhelper: up to and including 1.74

Published 2026-04-05. Last modified 2026-07-24.