Rockwell Automation ThinManager ThinServer Path Traversal Upload

published 2023-03-21 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-31590

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 13.5%; EPSS 13.5% chance of exploitation in 30 days, percentile 96%
public exploits: 1; Metasploit

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-080-06 updated 2023-03-31 cvss 9.8

Rockwell Automation ThinManager

Rockwell Automation ThinManager ThinServer >= 6.x, <= 10.x, >= 11.0.0, <= 11.0.5, >= 11.1.0, <= 11.1.5, >= 11.2.0, <= 11.2.6
affected: fixed in v11.0.6

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

2023-03-21 Published
2023-04-05 First public exploit (Metasploit auxiliary/admin/networking/thinmanager_traversal_upload)

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 20 mo ago (2025-02-25)

Exploit prediction

13.45% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Metasploit auxiliary/admin/networking/thinmanager_traversal_upload ThinManager Path Traversal (CVE-2023-27855) Arbitrary File Upload metasploit auxiliary, normal rank, 2023-04-05

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Rockwell Automation ThinManager ThinServer

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

rockwellautomation.custhelp.com /app/answers/answer_view/a_id/1138640
permissions-required, vendor-advisory

Sources

CVE List CVE-2023-27855
NVD CVE-2023-27855

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary