What is CVE-2025-53637?

CVE-2025-53637 is a medium-severity vulnerability in Meshtastic Firmware, classified under OS Command Injection. CVSS score: 4.1/10. Published 2025-07-10.

How severe is CVE-2025-53637?

Medium severity. CVSS v3 base score is 4.1 out of 10.

Is CVE-2025-53637 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Meshtastic Firmware

CVE-2025-53637

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 crea…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.002 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N.

Affected products

Meshtastic Firmware — versions >= 2.5.3, < 2.6.6

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

https://github.com/meshtastic/firmware/security/advisories/GHSA-6mwm-v2vv-pp96 (x_refsource_CONFIRM)
https://github.com/meshtastic/firmware/blob/3fd47d9713e7d1b6866c48cf218e2435741651a2/.github/workflows/main_matrix.yml#L34-L41 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-53637?: CVE-2025-53637 is a medium-severity vulnerability in Meshtastic Firmware, classified under OS Command Injection. CVSS score: 4.1/10. Published 2025-07-10.
How severe is CVE-2025-53637?: Medium severity. CVSS v3 base score is 4.1 out of 10.
Is CVE-2025-53637 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.