CVE-2025-11785
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 · uneditedStack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterPasswords()' 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 confidenceA stack-based buffer overflow exists in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2 where the ShowMeterPasswords() function uses sprintf() to copy user input from GetParameter(meter) into a fixed-size stack buffer without any length validation. An attacker can supply an excessively large 'meter' parameter value to overflow the buffer and potentially achieve remote code execution.
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 management interface or check the device label/documentation to confirm it is a Circutor SGE-PLC1000 or SGE-PLC50 unit.Affected if The device is not one of these two models, the vulnerability does not apply.
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Check the firmware versionLog into the device web interface and navigate to the system information or firmware version page. Alternatively, check the HTTP response headers or the device status page for the exact firmware version.Affected if The firmware version is exactly 9.0.2. Only this specific version is affected.
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Confirm the web interface is accessibleAttempt to reach the device's web management interface via HTTP/HTTPS on the expected management IP address.Affected if The ShowMeterPasswords() function is accessed through the web interface, so the web service must be enabled for the vulnerability to be exploitable.
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Locate the ShowMeterPasswords functionalityExamine the device web interface for a page or function related to meter passwords, typically found in settings or metering configuration sections. The vulnerable parameter 'meter' is passed via GetParameter().Affected if The meter password configuration feature exists and accepts user input through the 'meter' parameter.
You are affected only if you have a Circutor SGE-PLC1000 or SGE-PLC50 device running firmware version exactly 9.0.2 with the web interface enabled and the meter password configuration feature accessible.
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 dataReplace sprintf() with a bounds-checked function like snprintf() and implement strict input length validation on the 'meter' parameter before use. For affected devices, apply vendor-provided patches or firmware updates.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-11785 — 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-2025-11785 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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