CVE-2018-25231: Heidisql

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

HeidiSQL 9.5.0.5196 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long file path in the logging preferences. Attackers can input a buffer-overflow payload through the SQL log file path field in Preferences > Logging to trigger an application crash.

Affected products

• Heidisql Heidisql: up to and including 9.5.0.5196

Published 2026-03-30. Last modified 2026-10-07.