CVE-2018-18879
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 · uneditedIn firmware version MS_2.6.9900 of Columbia Weather MicroServer, an authenticated web user can pipe commands directly to the underlying operating system as user input is not sanitized in networkdiags.php.
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 confidenceColumbia Weather MicroServer firmware MS_2.6.9900 contains a command injection vulnerability in networkdiags.php. An authenticated web user can execute arbitrary OS commands because user input is not properly sanitized before being passed to system shell commands.
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= ms_2.6.9900CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/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 firmware versionAccess the device administrative interface and navigate to System Status or About page to view the firmware version. Alternatively, check HTTP response headers or the login page source for version strings.Affected if The firmware version is exactly ms_2.6.9900 (no other versions are listed as affected)
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Confirm the networkdiags.php file existsAttempt to access the file directly via HTTP/HTTPS: GET /networkdiags.php on the device's web server.Affected if The file returns a 200 OK response, indicating the vulnerable script is present.
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Verify web interface accessibilityDetermine if the device web interface is reachable from the network. Attempt a curl or browser request to the device IP on ports 80/443.Affected if The web interface is exposed to untrusted networks (not behind restricted ACLs or VPN)
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Check authentication statusDetermine if default credentials are in use or if valid user accounts exist for the web interface. Attempt to log in or check for default credential usage.Affected if An attacker can obtain valid authentication to the web interface, which is required to reach the vulnerable script
You are affected only if your device runs exactly firmware ms_2.6.9900 AND the networkdiags.php script is present AND an attacker can reach and authenticate to the web interface.
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 patch if available; otherwise restrict network access to the web interface via firewall rules or network segmentation, and consider device replacement if vendor support is unavailable.
- Consultation4.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,304.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-18879 — 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-2018-18879 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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