CVE-2025-21608

MEDIUM

meshtastic_firmware 2.5.0-2.5.18 - Unauthenticated Message Spoofing via MQTT

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.3
EPSS 0.0034
EPSS Percentile 26.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-668
Status published
Products (1)
meshtastic/meshtastic_firmware 2.5.0 - 2.5.19
Published Feb 18, 2025
Tracked Since Feb 18, 2026