CVE-2025-24798 json
Meshtastic crashes via an unimplemented routing module reply
published 2025-07-10 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21057
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 15 mo ago
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/meshtastic/firmware/security/advisories/GHSA-4q84-546j-3mf5 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- meshtastic firmware
Classification
- Weakness
-
- CWE-617 Reachable Assertion
References
-
github.com
/meshtastic/firmware/commit/dc100e4d3e3dfbf58d3ead8141a49cddb0cbdc19
patch
-
github.com
/meshtastic/firmware/security/advisories/GHSA-4q84-546j-3mf5
exploit, third-party-advisory
-
github.com
/meshtastic/firmware/blob/cdcbf4c61550e45c125e17a20aff4275e9389655/src/modules/RoutingModule.cpp#L44-L48
product
Sources
- CVE List CVE-2025-24798
- NVD CVE-2025-24798
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