CVE-2015-1006: OPTO22 Optodatalink

Critical severity, CVSS 9.8. EPSS: 5.3% chance of exploitation in the next 30 days.

A vulnerable file in Opto 22 PAC Project Professional versions prior to R9.4006, PAC Project Basic versions prior to R9.4006, PAC Display Basic versions prior to R9.4f, PAC Display Professional versions prior to R9.4f, OptoOPCServer versions prior to R9.4c, and OptoDataLink version R9.4d and prior versions that were installed by PAC Project installer, versions prior to R9.4006, is susceptible to a heap-based buffer overflow condition that may allow remote code execution on the target system. Opto 22 suggests upgrading to the new product version as soon as possible.

Affected products

• OPTO22 Optodatalink: before r9.4d (fixed in r9.4d)
• OPTO22 Optoopcserver: before r9.4c (fixed in r9.4c)
• OPTO22 Pac Display: before r9.4f (fixed in r9.4f)
• OPTO22 Pac Project: before r9.4006 (fixed in r9.4006)

Published 2019-05-10. Last modified 2026-06-17.