CVE-2025-24798

Meshtastic crashes via an unimplemented routing module reply

Description

Meshtastic is an open source mesh networking solution. From 1.2.1 until 2.6.2, a packet sent to the routing module that contains want_response==true causes a crash. This can lead to a degradation of service for nodes within range of a malicious sender, or via MQTT if downlink is enabled. This vulnerability is fixed in 2.6.2.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: meshtastic firmware
Published at:
Updated at:

References

Link Tags
https://github.com/meshtastic/firmware/security/advisories/GHSA-4q84-546j-3mf5
https://github.com/meshtastic/firmware/commit/dc100e4d3e3dfbf58d3ead8141a49cddb0cbdc19
https://github.com/meshtastic/firmware/blob/cdcbf4c61550e45c125e17a20aff4275e9389655/src/modules/RoutingModule.cpp#L44-L48

Frequently Asked Questions

What is the severity of CVE-2025-24798?
CVE-2025-24798 has been scored as a medium severity vulnerability.
How to fix CVE-2025-24798?
To fix CVE-2025-24798, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-24798 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-24798 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-24798?
CVE-2025-24798 affects meshtastic firmware.
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