CVE-2023-2914
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Rockwell Automation Thinmanager Thinserver is impacted by an improper input validation vulnerability, an integer overflow condition exists in the affected products. When the ThinManager processes incoming messages, a read access violation occurs and terminates the process. A malicious user could exploit this vulnerability by sending a crafted synchronization protocol message and causing a denial of service condition in the software.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe Rockwell Automation ThinManager Thinserver contains an integer overflow vulnerability in its synchronization protocol message processing. When the ThinManager processes specially crafted incoming messages, the integer overflow leads to a read access violation that terminates the process, causing a denial of service condition.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 11.0.0, <= 11.0.6>= 11.1.0, <= 11.1.6>= 11.2.0, <= 11.2.7>= 12.0.0, <= 12.0.5>= 12.1.0, <= 12.1.6>= 13.0.0, <= 13.0.2= 13.1.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm ThinManager Thinserver installationCheck for ThinManager installation directory (typically C:\Program Files\Rockwell Software\ThinManager or similar) and locate Thinserver.exeAffected if Thinserver.exe is present on the system
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Identify installed ThinManager versionRight-click Thinserver.exe, select Properties, and view the File Version in the Details tab. Alternatively, check the ThinManager version via the ThinManager Config Utility under About or Product InformationAffected if The installed version falls within any of these ranges: 11.0.0-11.0.6, 11.1.0-11.1.6, 11.2.0-11.2.7, 12.0.0-12.0.5, 12.1.0-12.1.16, or 13.0.0-13.1.0
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Verify Thinserver service is runningOpen Windows Services (services.msc) and locate the 'ThinManager Thinserver' service, or run 'sc query Thinserver' from an elevated command promptAffected if The Thinserver service is in a Running state
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Check network exposure of synchronization protocolReview Windows Firewall rules or external firewall configuration for inbound rules allowing connections to the Thinserver port (default 2030/2031 for TFTP, verify actual port in ThinManager configuration). Use 'netstat -an | findstr 2030' or similar to confirm listening statusAffected if The Thinserver is listening on accessible network ports and reachable from untrusted networks
If ThinManager Thinserver is installed with a version in the affected ranges and the Thinserver service is running with network accessibility, the environment is vulnerable to CVE-2023-2914 denial of service.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedImplement network segmentation and firewall controls to limit exposure of the ThinManager Thinserver to untrusted networks, and apply vendor-supplied patches when available.
Upgrade to version 11.0.7 (for 11.0.x), 11.1.7 (for 11.1.x), 11.2.8 (for 11.2.x), or 12.0.6 (for 12.0.x) depending on your current branch
- 1. Identify the current ThinManager Thinserver version by checking the installed software or viewing the ThinManager version in the ThinManager Admin console
- 2. Determine which version branch is currently in use (11.0.x, 11.1.x, 11.2.x, or 12.0.x)
- 3. For version 11.0.x: Upgrade to ThinManager Thinserver version 11.0.7 or later
- 4. For version 11.1.x: Upgrade to ThinManager Thinserver version 11.1.7 or later
- 5. For version 11.2.x: Upgrade to ThinManager Thinserver version 11.2.8 or later
- 6. For version 12.0.x: Upgrade to ThinManager Thinserver version 12.0.6 or later
- 7. After upgrading, verify that the ThinManager services start correctly and test synchronization functionality
- 8. Review ThinManager documentation for any additional post-upgrade configuration requirements
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-2914 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-2914 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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