CVE-2023-24474
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 · uneditedExperion server may experience a DoS due to a heap overflow which could occur when handling a specially crafted message
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 confidenceA heap overflow vulnerability in Honeywell Experion server allows remote attackers to cause denial of service by sending a specially crafted message. The heap overflow occurs during message handling, potentially corrupting memory and crashing the 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>= 501.1, <= 501.6hf8>= 510.1, <= 510.2hf12>= 511.1, <= 511.5tcu3>= 520.1, <= 520.1tcu4>= 520.2, <= 520.2tcu2>= 501.1, <= 501.6hf8>= 510.1, <= 510.2hf12>= 511.1, <= 511.5tcu3>= 520.1, <= 520.1tcu4>= 520.2, <= 520.2tcu2>= 510.1, <= 511.5tcu3>= 520.1, <= 520.1tcu4>= 520.2, <= 520.2tcu2>= 510.1, <= 511.5tcu3>= 520.1, <= 520.1tcu4>= 520.2, <= 520.2tcu2CVSS 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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Identify installed Honeywell productCheck the Control Panel Programs list or look for Honeywell Experion entries in Add/Remove Programs to determine if Experion Server, Experion Station, Engineering Station, or Direct Station is installed.Affected if Any of the four listed products are installed.
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Find the installed version numberOpen the Honeywell software and navigate to Help > About, or check the Windows Add/Remove Programs panel for the version number displayed there.Affected if The displayed version falls within any of the affected ranges: 501.1 to 501.6hf8, 510.1 to 510.2hf12, 511.1 to 511.5tcu3, 520.1 to 520.1tcu4, or 520.2 to 520.2tcu2.
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Confirm network exposure of Experion servicesCheck if the Experion server or station has open network listeners on typical OPC/HTTPS ports (for example, ports 443, 4444, 5555, or custom ports configured during installation) using netstat -an or a network scanner.Affected if The Experion service is listening on accessible network interfaces and accepts remote connections.
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Verify if the vulnerability trigger is reachableReview firewall rules and network segmentation to confirm whether untrusted network segments can send messages to the Experion message handling service.Affected if The service is reachable from network segments that contain untrusted or external systems.
You are affected if any Experion Server, Station, Engineering Station, or Direct Station version matches the affected ranges AND the service is network-accessible to handle the specially crafted messages.
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 dataApply vendor-supplied security patches for Experion. If no patch is available, implement network segmentation and input filtering to limit exposure to untrusted messages.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-24474 — 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-2023-24474 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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