CVE-2020-27251: Rockwellautomation Factorytalk Linx

Critical severity, CVSS 9.8. EPSS: 6.8% chance of exploitation in the next 30 days.

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious port ranges, which could result in remote code execution.

Affected products

• Rockwellautomation Factorytalk Linx: up to and including 6.11

Published 2020-11-26. Last modified 2026-06-17.