CVE-2024-45038: high-severity vulnerability in meshtastic firmware
Device crash via malformed MQTT packet when downlink is enabled in Meshtastic device firmware
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
Meshtastic device firmware is a firmware for meshtastic devices to run an open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices. Meshtastic device firmware is subject to a denial of serivce vulnerability in MQTT handling, fixed in version 2.4.1 of the Meshtastic firmware and on the Meshtastic public MQTT Broker. It's strongly suggested that all users of Meshtastic, particularly those that connect to a privately hosted MQTT server, update to this or a more recent stable version right away. There are no known workarounds for this vulnerability.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2025-24797CRITICALMeshtastic incorrectly hands malformed packets leads to controlled buffer overflowEPSS 0.9%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%