CVE-2022-38742
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 · uneditedRockwell Automation ThinManager ThinServer versions 11.0.0 - 13.0.0 is vulnerable to a heap-based buffer overflow. An attacker could send a specifically crafted TFTP or HTTPS request, causing a heap-based buffer overflow that crashes the ThinServer process. If successfully exploited, this could expose the server to arbitrary remote code execution.
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 · high confidenceRockwell Automation ThinManager ThinServer versions 11.0.0 through 13.0.0 contain a heap-based buffer overflow vulnerability in the TFTP and HTTPS request handling code. An attacker sending specially crafted requests can overflow the heap buffer, causing process crash and potentially achieving arbitrary remote code execution with the privileges of the ThinServer service.
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, <= 13.0.0CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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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Locate ThinManager ThinServer installationIdentify where ThinManager ThinServer is installed on the system and locate the executable or service information. Common locations include C:\Program Files\Rockwell Automation\ThinManager or similar paths depending on installation.Affected if ThinManager ThinServer software is present on the system
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Determine installed ThinServer versionUse the product's built-in version information mechanism such as checking file properties of the ThinServer executable, reviewing the installed programs list in Control Panel, or running the product's version command if available.Affected if The installed version falls within the range 11.0.0 through 13.0.0 inclusive
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Verify TFTP service statusCheck if the TFTP server component is enabled or running. This can be done through the ThinManager configuration console, Windows Services panel, or by reviewing the product's enabled protocols and services configuration.Affected if TFTP service is enabled and accessible on the network
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Verify HTTPS service statusCheck if the HTTPS server component is enabled or running. This can be done through the ThinManager configuration console, Windows Services panel, or by reviewing the product's enabled protocols and services configuration.Affected if HTTPS service is enabled and accessible on the network
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Confirm network exposureReview network configuration to determine whether TFTP and HTTPS ports are exposed to untrusted networks. Check firewall rules, network segmentation, and access control lists surrounding the ThinServer host.Affected if TFTP or HTTPS services are reachable from untrusted or external network segments
The environment is affected if ThinManager ThinServer version 11.0.0 through 13.0.0 is installed with TFTP or HTTPS services enabled and accessible, as the buffer overflow vulnerability exists in the request handling code for these services.
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.
From vendor dataUpdate ThinManager ThinServer to a version beyond 13.0.0 when a patched release is available. If immediate patching is not possible, consider network segmentation to restrict access to TFTP and HTTPS services and monitor for anomalous traffic patterns.
- Consultation3.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-38742 — 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-2022-38742 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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