CVE-2018-6640: Wiris Mathtype

Critical severity, CVSS 9.8. EPSS: 3.9% chance of exploitation in the next 30 days.

A Heap Overflow (Remote Code Execution) issue was discovered in Design Science MathType 6.9c. Crafted input can modify the next pointer of a linked list. This is fixed in 6.9d.

Affected products

• Wiris Mathtype: version 6.9c only

Published 2018-02-28. Last modified 2026-06-17.