CVE-2018-3834

HighCVSS 7.4/10Last modified Jun 17, 2026

Description

An exploitable permanent denial of service vulnerability exists in Insteon Hub running firmware version 1013. The firmware upgrade functionality, triggered via PubNub, retrieves signed firmware binaries using plain HTTP requests. The device doesn't check the kind of firmware image that is going to be installed and thus allows for flashing any signed firmware into any MCU. Since the device contains different and incompatible MCUs, flashing one firmware to the wrong MCU will result in a permanent brick condition. To trigger this vulnerability, an attacker needs to impersonate the remote server "cache.insteon.com" and serve a signed firmware image.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-346

Affected software

No affected versions have been published.

Timeline

Published
Aug 2, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-3834: High severity, CVSS 7.4 | Vulnix