CVE-2023-26866
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 · uneditedGreenPacket OH736's WR-1200 Indoor Unit, OT-235 with firmware versions M-IDU-1.6.0.3_V1.1 and MH-46360-2.0.3-R5-GP respectively are vulnerable to remote command injection. Commands are executed using pre-login execution and executed with root privileges allowing complete takeover.
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 confidenceRemote command injection vulnerability in GreenPacket OH736 WR-1200 Indoor Unit and OT-235 devices allowing pre-authentication OS command execution with root privileges, enabling complete device takeover.
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= m-idu-1.6.0.3_v1.1= m-idu-1.6.0.3_v1.1= mh-46360-2.0.3-r5-gpCVSS 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 device modelLocate the physical device or log into the management interface to confirm the model is GreenPacket OH736 WR-1200 Indoor Unit or OT-235Affected if Device model is either WR-1200 or OT-235
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Check firmware versionAccess the device web interface or CLI and navigate to the firmware/version information page. Compare the installed firmware version against the affected versions: m-idu-1.6.0.3_v1.1 or mh-46360-2.0.3-r5-gpAffected if Firmware version exactly matches m-idu-1.6.0.3_v1.1 or mh-46360-2.0.3-r5-gp
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Verify web management interface exposureDetermine if the device web management interface is accessible from the network. Check router/firewall configurations for port 80/443 or any custom HTTP port forwarding to the deviceAffected if Web management interface is exposed to network without network segmentation or access controls
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Check for unauthorized processes or connectionsIf you have CLI or SSH access to the device, run commands to list active processes (ps) and network connections (netstat) to identify any unexpected outbound connections or unknown processesAffected if Unexpected processes running or suspicious outbound connections to unknown IPs are present
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Review web server logs for command injection patternsIf accessible, examine the device web server logs for patterns indicating command injection attempts, such as semicolons, pipe symbols, or backticks in URL parametersAffected if Log entries show command injection patterns in HTTP requests
The device is affected if it is a GreenPacket WR-1200 or OT-235 running firmware version m-idu-1.6.0.3_v1.1 or mh-46360-2.0.3-r5-gp, and its web management interface is network-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 dataApply vendor firmware updates M-IDU-1.6.0.3_V1.1 and MH-46360-2.0.3-R5-GP; if unavailable, disable network exposure or isolate affected devices and implement network segmentation as compensating controls.
- Consultation6.0 h
- Implementation8.0 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-2023-26866 — 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-2023-26866 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data