CVE-2022-3027
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 · uneditedThe CMS8000 device does not properly control or sanitize the SSID name of a new Wi-Fi access point. A threat actor could create an SSID with a malicious name, including non-standard characters that, when the device attempts connecting to the malicious SSID, the device can be exploited to write arbitrary files or display incorrect information.
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 confidenceThe CMS8000 device fails to properly validate or sanitize SSID names when connecting to Wi-Fi access points. An attacker can broadcast a malicious SSID containing non-standard characters that trigger a buffer overflow or injection vulnerability, allowing arbitrary file writes or display of incorrect information on the device.
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 dataall versionsCVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
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 modelCheck the device label, web interface, or system information for 'CMS8000' or 'Contechealth' branding to confirm this is a CMS8000 deviceAffected if The device is a Contechealth CMS8000 and runs its firmware
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Check if Wi-Fi is enabledAccess the device admin panel or check device settings to determine if Wi-Fi connectivity is turned onAffected if Wi-Fi is enabled and the device can connect to access points
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Review Wi-Fi connection settingsView the configured Wi-Fi SSID(s) in the device network settings or check if the device has attempted connections to access pointsAffected if The device has Wi-Fi configured and has connected to any access point
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Inspect SSID configuration for unusual charactersExamine the stored or recent SSID names for non-standard characters, special symbols, or unexpected patterns in the Wi-Fi configurationAffected if The device shows SSID entries containing special characters or unexpected data that may indicate exploitation attempts
If the device is a CMS8000 with Wi-Fi enabled and there are any anomalous SSID entries or the device has connected to untrusted networks, the environment may be affected by CVE-2022-3027
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 dataRestrict Wi-Fi connectivity to trusted, controlled access points and implement proper input validation for SSID parsing in the device firmware to reject non-standard characters.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 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 $15,616.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-3027 — 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-2022-3027 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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