Meshtastic crashes via an unimplemented routing module reply
Priority MEDIUM 62CWE-617Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-617.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00444 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed firmware (meshtastic): 2.6.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| meshtastic | firmware | 1.2.1 to before 2.6.2 | 2.6.2 | Patch available | CNA |
- firmware Vendormeshtastic Affected 1.2.1 to before 2.6.2 Fixed in 2.6.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:* | 1.2.1 to before 2.6.2 | Vulnerable | meshtastic |
- cpe:2.3:o:meshtastic:meshtastic_firmware:*:*:*:*:*:*:*:* Versions 1.2.1 to before 2.6.2 Vulnerable ·meshtastic
Remediation
- Fix · CNA firmware (meshtastic) Fixed in 2.6.2
Timeline
- 2026-10-02 Threatist record created from CVE-2025-24798
References
More Meshtastic Firmware vulnerabilities
- TI-2025-34949 Meshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDB CVSS 3.1CRITICAL 9.8
- TI-2025-34948 In Meshtastic, an attacker can spoof licensed amateur flag for a node CVSS 3.1HIGH 8.2
- TI-2024-34421 Failure to check for packets from the broadcast address allows potential DDoS… CVSS 3.1HIGH 7.5
- TI-2025-33563 Meshtastic allows Command Injection in GitHub Action CVSS 3.1HIGH 8.0
- TI-2025-33554 Meshtastic firmware allows forged DMs with no PKC to show up as encrypted CVSS 3.1MEDIUM 5.3
- TI-2024-31447 Traceroute_APP responses are not rate-limited. CVSS 4.0LOW 2.7
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences