CVE-2025-24797: critical vulnerability in meshtastic firmware
Meshtastic incorrectly hands malformed packets leads to controlled buffer overflow
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.9%
Meshtastic is an open source mesh networking solution. A fault in the handling of mesh packets containing invalid protobuf data can result in an attacker-controlled buffer overflow, allowing an attacker to hijack execution flow, potentially resulting in remote code execution. This attack does not require authentication or user interaction, as long as the target device rebroadcasts packets on the default channel. This vulnerability fixed in 2.6.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
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-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%CVE-2024-47078HIGHMeshtastic firmware Authentication/Authorization Bypass via MQTTEPSS 0.5%