CVE-2015-7939: Unitronics Visilogic Oplc IDE

Critical severity, CVSS 9.6. EPSS: 5% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Unitronics VisiLogic OPLC IDE before 9.8.09 allows remote attackers to execute arbitrary code via a long vlp filename.

Affected products

• Unitronics Visilogic Oplc IDE: up to and including 9.8.0.00

Published 2016-01-09. Last modified 2026-06-17.