NVD / CVE Program· CNA Rockwell

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

CriticalCVSS 9.8 · v3.1—Weaponized No fix recorded

Noroxi assessment

Priority: This week (action score 60/100)

A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
A ready-made attack tool exists and the flaw can be exploited over the network without an account, so priority is at least “This week”.
Probability of exploitation in the next 30 days: 13.4% (FIRST EPSS); higher than 96.4% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

BDU:2023-01525

Published: Mar 21, 2023
Updated: Jun 17, 2026
EPSS: 13.4% · 96th percentile
CWE: CWE-22

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 4 / 30 · 13.4%
Ready-made attack tool: 17 / 60 · floor: at least 60

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 9.8
CNA · Rockwell: 9.8; agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Weaponized exploit exists
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
rockwellautomation	thinmanager	cpe:2.3:a:rockwellautomation:thinmanager

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Rockwell). Independent of NVD's CPE analysis and usually ahead of it.

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, 12.0.0 - 12.0.4, 12.1.0 - 12.1.5, 13.0.0 - 13.0.1affected

Affected versions · NVD (8)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

rockwellautomation thinmanager6.0.0 and later · up to 10.0.2 inclusive
rockwellautomation thinmanager11.0.0 and later · up to 11.0.5 inclusive
rockwellautomation thinmanager11.1.0 and later · up to 11.1.5 inclusive
rockwellautomation thinmanager11.2.0 and later · up to 11.2.6 inclusive
rockwellautomation thinmanager12.0.0 and later · up to 12.0.4 inclusive
rockwellautomation thinmanager12.1.0 and later · up to 12.1.5 inclusive
rockwellautomation thinmanager13.0.0
rockwellautomation thinmanager13.0.1

Same product

rockwellautomation: all records

Other highest-scoring records for the same primary product.

CVE-2023-27856Rockwell Automation ThinManager ThinServer Path Traversal Download
60This week
CVE-2022-38742Rockwell Automation ThinManager Software Vulnerable to Arbitrary Code Execution and Denial-Of-Service Attack
46Plan
CVE-2024-10386Rockwell Automation FactoryTalk ThinManager Authentication Vulnerability
43Plan

Published before and after this one in the same product

Later →CVE-2023-27857Mar 21, 2023 · Rockwell Automation ThinManager ThinServer Heap-Based Buffer Overflow
36Monitor
Later →CVE-2023-2443May 11, 2023 · Rockwell Automation ThinManager product allows the use of medium strength ciphers.
30Monitor
Later →CVE-2023-2913Jul 18, 2023 · Rockwell Automation ThinManager ThinServer Path Traversal Vulnerability
27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Metasploit module ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Metasploit module	auxiliary/admin/networking/thinmanager_traversal_uploadThinManager Path Traversal (CVE-2023-27855) Arbitrary File Uploadauxiliary	2023-04-05

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedMar 21, 2023
MetasploitApr 5, 2023+14 d
TodayNov 12, 2026+1332 d

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Security researchersTenable reported this to Rockwell Automation.finder

Not on record for this CVE: EPSS history · patch commit or PR link · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (0)

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1138640

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records