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Vulnerabilities

Vulnerability · CVE-2025-53637

Meshtastic is an open source mesh networking solution.

Published Jul 10, 2025 · catalog updated Jul 11, 2025 · Meshtastic is an open

Check if you run it

No confirmed exploitation is on record for CVE-2025-53637. EPSS is 0.39%. Act only if a listed version of Meshtastic is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Meshtastic is an open).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Version ranges on file
Affected products
vendor meshtastic firmware 2.5.3, < 2.6.6

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor meshtastic firmware 2.5.3, < 2.6.62.5.3, < 2.6.6

How to fix CVE-2025-53637

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-53637. EPSS is 0.39%. Act only if a listed version of Meshtastic is an open is installed.

Which versions are affected?

Compare what you have installed with meshtastic firmware 2.5.3, < 2.6.6 2.5.3, < 2.6.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 10, 2025 · EUVD

    Detected

    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

  2. Jul 11, 2025 · EUVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2025-53637

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-53637

    30-day exploitation probability 0.39%

    first.org
  • EUVDVulnerability recordEUVD-2025-21075

    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 exe

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.