What’s Vulnerable › Vulnerabilities

CVE-2023-27855: Rockwell Automation ThinManager ThinServer Path Traversal Upload

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-22 · updated 2026-06-17
• Weakness: CWE-22

Description

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

• Rockwell Automation ThinManager ThinServer: from 6.0.0 through 10.0.2; from 11.0.0 through 11.0.5; from 11.1.0 through 11.1.5; from 11.2.0 through 11.2.6; from 12.0.0 through 12.0.4; from 12.1.0 through 12.1.5

References

• https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1138640
• https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1138640

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