An exploitable permanent denial of service vulnerability exists in Insteon Hub running firmware version 1013.

Published 8 y ago 2018-08-02 · modified 4 mo ago 2026-06-17 · JSON

CVSS

8.7

v3.0 · CNA

CISA KEV

not known exploited

EPSS

0.5%

percentile 44%

Public exploits

none known

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.

Exploit prediction (EPSS)

0.51% probability of exploitation in the next 30 days, higher than 44% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	3.0	8.7	`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H`
NVD	3.1	7.4	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H`
CNA	3.0	8.7	`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H`
NVD	2.0	7.8	`AV:N/AC:M/Au:N/C:N/I:P/A:C`

Affected products

Insteon Insteon

Classification

Weakness

CWE-346 Origin Validation Error

References

talosintelligence.com /vulnerability_reports/TALOS-2018-0513 · x_refsource_MISC, x_transferred

Sources

CVE List: CVE-2018-3834
NVD: CVE-2018-3834

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