CVE-2025-21608
Last modified
CVE-2025-21608 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Meshtastic is an open source mesh networking solution. In affected firmware versions crafted packets over MQTT are able to appear as a DM in client to a node even though they were not decoded with PKC. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
Meshtastic is an open source mesh networking solution. In affected firmware versions crafted packets over MQTT are able to appear as a DM in client to a node even though they were not decoded with PKC. This issue has been addressed in version 2.5.19 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Meshtastic | Meshtastic Firmware | >= 2.5.0, < 2.5.19 |
References
- https://github.com/meshtastic/firmware/security/advisories/GHSA-c967-qc39-3hf5Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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