CVE-2025-53637: medium-severity vulnerability in meshtastic firmware
Meshtastic allows Command Injection in GitHub Action
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.1epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
Affected products
meshtastic · firmwareRelated CVEs — meshtastic firmware
In the same product, most dangerous first.
CVE-2026-44359CRITICALMeshtastic GitHub repo vulnerable to Arbitrary Code Execution via pull_request_target Fork Checkout in CI WorkflowEPSS 1.8%CVE-2025-24797CRITICALMeshtastic incorrectly hands malformed packets leads to controlled buffer overflowEPSS 0.9%CVE-2024-45038HIGHDevice crash via malformed MQTT packet when downlink is enabled in Meshtastic device firmwareEPSS 0.6%CVE-2025-52464CRITICALMeshtastic Repeated Public and Private KeypairsEPSS 0.6%CVE-2026-42566HIGHMeshtastic: Malformed UTF-8 in User.long_name broadcast over LoRa causes mesh-wide client decode failureEPSS 0.5%CVE-2025-55293CRITICALMeshtastic allows crafting of specific NodeInfo packets that overwrite any publicKey saved in the NodeDBEPSS 0.5%