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Vulnerability record · CVE-2025-24798 · published 10 July 2025

CVE-2025-24798: Meshtastic firmware vulnerability

Meshtastic · Meshtastic Firmware

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.

6.5 CVSS 3.1 Medium EPSS 0.41% · top 66.6% CWE-617 · CWE-617
6.5CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/meshtastic/firmware/blob/cdcbf4c61550e45c125e17a20aff4275e9389655/src/modules/RoutingModule.cpp#L44-L Product
https://github.com/meshtastic/firmware/commit/dc100e4d3e3dfbf58d3ead8141a49cddb0cbdc19 Patch
https://github.com/meshtastic/firmware/security/advisories/GHSA-4q84-546j-3mf5 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-24798), CISA KEV, FIRST EPSS (scores of 2026-10-04). This page is refreshed as NVD updates the record.