What is CVE-2026-44359?

CVE-2026-44359 is a critical-severity vulnerability in Meshtastic Firmware, classified under Code Injection. CVSS score: 10.0/10. Published 2026-07-20.

How severe is CVE-2026-44359?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Meshtastic Firmware

CVE-2026-44359

Meshtastic is an open source mesh networking solution. Prior to version 2.7.21.1370b23, the Meshtastic GitHub repository's main_matrix.yml workflow is triggered by pull_request_target and multiple jobs check out the attacker's fork code a…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.010 (59.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Meshtastic Firmware — versions < 2.7.21.1370b23

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-44359?: CVE-2026-44359 is a critical-severity vulnerability in Meshtastic Firmware, classified under Code Injection. CVSS score: 10.0/10. Published 2026-07-20.
How severe is CVE-2026-44359?: Critical severity. CVSS v3 base score is 10.0 out of 10.