CVE-2025-11788
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 · uneditedHeap-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowSupervisorParameters()' function, there is an unlimited user input that is copied to a fixed-size buffer via 'sprintf()'. The 'GetParameter(meter)' function retrieves the user input, which is directly incorporated into a buffer without size validation. An attacker can provide an excessively large input for the 'meter' parameter.
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 confidenceHeap-based buffer overflow in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 allows remote attackers to overflow a fixed-size heap buffer via unbounded sprintf() in the ShowSupervisorParameters() function. The GetParameter(meter) function retrieves user-supplied input without size validation and directly copies it to a fixed-size buffer, enabling potential arbitrary code execution or denial of 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= 9.0.2= 9.0.2CVSS 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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Identify the device modelAccess the device's web interface, administrative console, or check the device label/metadata to confirm it is a Circutor SGE-PLC1000 or SGE-PLC50 unitAffected if The device is not one of these two models, then it is not affected
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Check firmware versionNavigate to the device's web interface (typically http://[device-ip]/) or administrative panel and locate the firmware version information, often found in System Info, Status, or About pagesAffected if The firmware version is exactly 9.0.2 (only this exact version is affected)
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Verify remote access is enabledCheck if the device's web server or remote management interface is accessible over the network (ports 80/443 or custom ports). Check device network settings to confirm HTTP/HTTPS services are enabledAffected if Remote HTTP/HTTPS access is enabled and the ShowSupervisorParameters endpoint is reachable
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Identify if ShowSupervisorParameters is accessibleLocate the web endpoint or API path that exposes the ShowSupervisorParameters function. This is typically accessed via a web request with the 'meter' parameter. Check device documentation or enumerate common paths like /cgi-bin/plc or similarAffected if The ShowSupervisorParameters function is accessible via a web interface or API and accepts the 'meter' parameter
Your environment is affected only if you have a Circutor SGE-PLC1000 or SGE-PLC50 device running firmware version 9.0.2 with remote web access enabled and the ShowSupervisorParameters function exposed.
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 dataContact Circutor for the vendor patch; as an interim control, restrict network access to the PLC management interface and implement input validation at upstream network devices to block oversized meter parameter values.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-11788 — 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-2025-11788 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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