CVE-2018-3833

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-08-23 · updated 2026-06-17

Description

An exploitable firmware downgrade 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 firmware version that is going to be installed and thus allows for flashing older firmware images. To trigger this vulnerability, an attacker needs to impersonate the remote server 'cache.insteon.com' and serve any signed firmware image.

Affected products

Insteon Hub 2245-222: 1013

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512

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