Vulnerability · Published Jul 10, 2025 · Assigned by GitHub_M

CVE-2025-53637Meshtastic allows Command Injection in GitHub Action

Medium 4.1

In plain English

A medium-severity OS command injection in firmware from meshtastic. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)4.1Medium
Exploit odds (30 days)0.4%top 66.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Meshtastic is an open source mesh networking solution. The main_matrix.yml GitHub Action is triggered by the pull_request_target event, which has extensive permissions, and can be initiated by an attacker who forked the repository and created a pull request. In the shell code execution part, user-controlled input is interpolated unsafely into the code. If this were to be exploited, attackers could inject unauthorized code into the repository. This vulnerability is fixed in 2.6.6.

Affected products (as reported)

VendorProductVersions
meshtastic firmware >= 2.5.3, < 2.6.6

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

References