CVE-2018-25271: Helios Textpad

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

Textpad 8.1.2 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long buffer string through the Run command interface. Attackers can paste a 5000-byte payload into the Command field via Tools > Run to trigger a buffer overflow that crashes the application.

Affected products

• Helios Textpad: version 8.1.2 only

Published 2026-04-22. Last modified 2026-06-17.