CVE-2023-32346
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 · uneditedTeltonika’s Remote Management System versions prior to 4.10.0 contain a function that allows users to claim their devices. This function returns information based on whether the serial number of a device has already been claimed, the MAC address of a device has already been claimed, or whether the attempt to claim a device was successful. An attacker could exploit this to create a list of the serial numbers and MAC addresses of all devices cloud-connected to the Remote Management System.
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 claim device function in Teltonika Remote Management System versions prior to 4.10.0 returns different responses based on whether a device serial number or MAC address has already been claimed versus a new claim attempt. An attacker can exploit this to enumerate valid device identifiers by systematically testing serial numbers and MAC addresses, building a list of devices registered in the system.
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< 4.10.0CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 Teltonika RMS versionCheck the RMS web interface footer or system information page for the version number, or query the API endpoint /api/system/infoAffected if The installed version is prior to 4.10.0
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Locate the claim device endpointInspect the RMS API documentation or network traffic to identify the /api/devices/claim or similar endpoint used for device claimingAffected if The claim endpoint is accessible without authentication or with low-privilege access
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Verify claim response behaviorMake two test claims: one with a known-claimed device serial/MAC and one with a non-claimed serial/MAC, comparing HTTP status codes and response messagesAffected if The system returns different responses (e.g., 'already claimed' vs 'success' or 'not found') for claimed versus unclaimed devices
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Check API authentication requirementsReview the RMS API access controls and authentication configuration for the claim endpoint in system settingsAffected if The claim endpoint allows unauthenticated or weakly authenticated requests
A user is affected if they run Teltonika RMS version below 4.10.0 and the claim device endpoint returns distinct responses that reveal whether a specific serial number or MAC address is already registered in the system.
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.
dbcve · scoped4.10.0
Upgrade Teltonika RMS to version 4.10.0 or later, which presumably implements uniform responses regardless of claim status to prevent enumeration.
4.10.0
- 1. Back up the current Teltonika Remote Management System configuration and database
- 2. Download Teltonika Remote Management System version 4.10.0 or later from the official Teltonika download portal
- 3. Apply the upgrade following Teltonika's standard upgrade procedure for the RMS platform
- 4. Verify the upgrade was successful by logging into the management interface
- 5. Confirm the device claim function no longer exposes distinct responses for claimed vs. unclaimed devices
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 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-2023-32346 — 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-2023-32346 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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