CVE-2023-27855

Rockwell Automation ThinManager ThinServer Path Traversal Upload

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.

Remediation

Solution:

  • Customers are directed to update to versions of the product that correct the vulnerability as listed in the reference article.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 20.89% Top 5%
Vendor Advisory custhelp.com
Affected: Rockwell Automation ThinManager ThinServer
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-27855?
CVE-2023-27855 has been scored as a critical severity vulnerability.
How to fix CVE-2023-27855?
To fix CVE-2023-27855: Customers are directed to update to versions of the product that correct the vulnerability as listed in the reference article.
Is CVE-2023-27855 being actively exploited in the wild?
It is possible that CVE-2023-27855 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~21% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-27855?
CVE-2023-27855 affects Rockwell Automation ThinManager ThinServer.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.