CVE-2024-47078
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 · uneditedMeshtastic is an open source, off-grid, decentralized, mesh network. Meshtastic uses MQTT to communicate over an internet connection to a shared or private MQTT Server. Nodes can communicate directly via an internet connection or proxied through a connected phone (i.e., via bluetooth). Prior to version 2.5.1, multiple weaknesses in the MQTT implementation allow for authentication and authorization bypasses resulting in unauthorized control of MQTT-connected nodes. Version 2.5.1 contains a patch.
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 confidenceMeshtastic's MQTT implementation prior to version 2.5.1 contains multiple authentication and authorization bypass vulnerabilities. Attackers can gain unauthorized control of MQTT-connected nodes by exploiting these weaknesses in the MQTT communication layer.
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< 2.5.1CVSS 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 installed firmware versionUse Meshtastic CLI command 'meshtastic --info' or check device status through the Meshtastic app or web interface to retrieve the running firmware versionAffected if firmware version is below 2.5.1
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Verify MQTT module statusCheck the device MQTT configuration settings via Meshtastic CLI 'meshtastic --get mqtt' or through the device settings interface to determine if the MQTT module is enabledAffected if MQTT module is enabled and firmware version is below 2.5.1
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Confirm MQTT server connectionInspect MQTT settings to identify the configured MQTT broker server address and verify an active MQTT connection existsAffected if device is actively connecting to an MQTT broker and firmware version is below 2.5.1
Your device is affected if it runs Meshtastic firmware version below 2.5.1 and has the MQTT module enabled, as this combination exposes the authentication and authorization vulnerabilities in the MQTT implementation.
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 · scoped2.5.1
Upgrade Meshtastic instances to version 2.5.1 or later to obtain the patched MQTT implementation. If upgrade is not immediately possible, restrict MQTT server access to trusted networks and verify MQTT authentication configurations.
2.5.1
- Download Meshtastic firmware version 2.5.1 or later from the official Meshtastic GitHub releases page
- Connect your Meshtastic device to your computer via USB
- Use the Meshtastic flasher tool, Python CLI (meshtastic --firmware), or the Meshtastic mobile application to flash the updated firmware to your device
- Verify the firmware version after flashing to confirm the update was successful
- If using MQTT, reconfigure authentication credentials to ensure proper secure setup
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-47078 — 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-2024-47078 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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