CVE-2018-3834

highpriority · track · 30EPSS 0.005 · 43 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.51% (43rd) EPSS

CVSS 7.8 · high

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.7

v2.07.8highAV:N/AC:M/Au:N/C:N/I:P/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 7.8

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.2

v3.08.7highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:Hsecondary · ENISA EU

v3.08.7highCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:Hsecondary · talos-cna@cisco.com USexploitability 2.2 · impact 5.8

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-346USprimary

affected products (2)

Products and version ranges known to be affected.

Insteon Insteon≤ Insteon Hub 2245-222 - Firmware version 1013enisa_euvdEU
insteon hub firmware= 1013nvdUScpe:2.3:o:insteon:hub_firmware:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-08-02modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0513 cnnvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0513 cnnvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0513 enisa_euvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0513ExploitTechnical DescriptionThird Party Advisorynvd

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