CVE-2023-27855: Rockwellautomation Thinmanager

Critical severity, CVSS 9.8. EPSS: 13.5% chance of exploitation in the next 30 days.

In affected versions, a path traversal exists when processing a message in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker could potentially exploit this vulnerability to upload arbitrary files to any directory on the disk drive where ThinServer.exe is installed. The attacker could overwrite existing executable files with attacker-controlled, malicious contents, potentially causing remote code execution.

Affected products

• Rockwellautomation Thinmanager: from 6.0.0, up to and including 10.0.2; from 11.0.0, up to and including 11.0.5; from 11.1.0, up to and including 11.1.5; from 11.2.0, up to and including 11.2.6; from 12.0.0, up to and including 12.0.4; from 12.1.0, up to and including 12.1.5; …

Published 2023-03-22. Last modified 2026-06-17.