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Thinmanager CVE-2023-27856

HIGH
Path Traversal (CWE-22)
2023-03-22 PSIRT@rockwellautomation.com
7.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could access files and directories outside the intended path by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.
No patch listed yet 76.1% exploitation probability (EPSS)

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AnalysisAI

In affected versions, path traversal exists when processing a message of type 8 in Rockwell Automation's ThinManager ThinServer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. In affected versions, path traversal exists when processing a message of type 8 in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker can exploit this vulnerability to download arbitrary files on the disk drive where ThinServer.exe is installed. Affected products include: Rockwellautomation Thinmanager.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

In affected versions, path traversal exists when processing a message of type 8

in Rockwell Automation's ThinManager ThinServer.

An unauthenticated remote attacker can exploit this vulnerability to download arbitrary files on the disk drive where ThinServer.exe is installed.

Threat Intelligence Overview

EPSS Score
76.1%
Top 1% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 76.1%
Patch available No
Active threat Yes
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

134
Low Medium High Critical
KEV: 0
EPSS: +76
CVSS: +38
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Affected Products (CPE)NVD

cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:*:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:thinmanager:13.0.1:*:*:*:*:*:*:*
CVE-2023-27855 CRITICAL POC
9.8 Mar 22

In affected versions, a path traversal exists when processing a message in Rockwell Automation's ThinManager ThinServer.

CVE-2022-38742 CRITICAL
9.8 Sep 23

Rockwell Automation ThinManager ThinServer versions 11.0.0 - 13.0.0 is vulnerable to a heap-based buffer overflow. Rated

CVE-2024-10386 CRITICAL
9.3 Oct 25

CVE-2024-10386 IMPACT An authentication vulnerability exists in the affected product. Rated critical severity (CVSS 9.3)

CVE-2024-5989 CRITICAL
9.3 Jun 25

Due to an improper input validation, an unauthenticated threat actor can send a malicious message to invoke SQL injectio

CVE-2024-5988 CRITICAL
9.3 Jun 25

Due to an improper input validation, an unauthenticated threat actor can send a malicious message to invoke a local or r

CVE-2024-10387 HIGH
8.7 Oct 25

CVE-2024-10387 IMPACT A Denial-of-Service vulnerability exists in the affected product. Rated high severity (CVSS 8.7),

CVE-2024-5990 HIGH
8.7 Jun 25

Due to an improper input validation, an unauthenticated threat actor can send a malicious message to a monitor thread wi

CVE-2025-3618 HIGH
8.5 Apr 15

A denial-of-service vulnerability exists in the Rockwell Automation ThinManager. Rated high severity (CVSS 8.5), this vu

CVE-2025-3617 HIGH
8.5 Apr 15

A privilege escalation vulnerability exists in the Rockwell Automation ThinManager. Rated high severity (CVSS 8.5), this

CVE-2024-45826 HIGH
8.5 Sep 12

CVE-2024-45826 IMPACT Due to improper input validation, a path traversal and remote code execution vulnerability exists

CVE-2023-2443 HIGH
7.5 May 11

Rockwell Automation ThinManager product allows the use of medium strength ciphers. Rated high severity (CVSS 7.5), this

CVE-2023-27857 HIGH
7.5 Mar 22

In affected versions, a heap-based buffer over-read condition occurs when the message field indicates more data than is

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