CVE-2025-21608 MEDIUM

CVE-2025-21608: Forged packets over MQTT can show up in direct messages in Meshtastic firmware

Vendor Meshtastic
Product firmware
Weakness CWE-668
Published February 18, 2025
Last update February 19, 2025
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 18, 2025 CVE published
February 19, 2025 Record updated