CVE-2022-36385
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 · uneditedA threat actor with momentary access to the device can plug in a USB drive and perform a malicious firmware update, resulting in permanent changes to device functionality. No authentication or controls are in place to prevent a threat actor from maliciously modifying firmware and performing a drive-by attack to load the firmware on any CMS8000 device.
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 confidenceThe CMS8000 device lacks authentication and access controls for its USB-based firmware update mechanism. An attacker with momentary physical access can plug in a malicious USB drive and install unauthorized firmware, causing permanent modifications to device functionality. This is a drive-by attack requiring no credentials.
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
- Physical
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:P/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 modelCheck the device label, boot screen, or system information interface for the exact model name. Confirm it is the Contechealth Cms8000.Affected if The device is a Contechealth Cms8000 model.
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Determine the installed firmware versionAccess the device firmware or system settings menu, or check the device administrative interface for the current firmware version number.Affected if Any firmware version is installed (all versions are affected per the CVE).
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Verify USB firmware update capabilityCheck the device settings or firmware update menu for an option related to USB-based firmware updates. Determine if USB update functionality is present and accessible.Affected if USB firmware update feature exists and is available on the device.
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Check for authentication on firmware updatesExamine the firmware update process. Attempt to initiate a firmware update via USB or review the update procedure documentation to determine if any password, PIN, or authentication is required before a firmware image can be applied.Affected if No authentication is required to perform a firmware update via USB.
The user is affected if they have a Contechealth Cms8000 device with USB firmware update capability that does not require authentication before accepting and installing firmware.
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 dataImplement cryptographic code signing and secure boot to validate firmware authenticity before installation. Require authentication (password/biometric/secure key) for all firmware update operations and disable USB firmware update by default.
- Consultation8.0 h
- Implementation32.0 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 $17,920.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-36385 — 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-2022-36385 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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