CVE-2018-3833

mediumpriority · track · 30OT risk · elevatedEPSS 0.011 · 66 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.12% (66th) EPSS

CVSS 5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-26

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.

cvss

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

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–8.6

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · ENISA EU

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:Nsecondary · talos-cna@cisco.com USexploitability 3.9 · impact 4

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-345USLLM-inferredCWE-406USLLM-inferred

affected products (2)

Products and version ranges known to be affected.

Insteon Insteon≤ Insteon Hub 2245-222 - Firmware version 1013enisa_euvdEU
insteon hub 2245-222 firmware= 1013nvdUScpe:2.3:o:insteon:hub_2245-222_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 2018-08-23modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0512 cnnvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512 cnnvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512 enisa_euvd
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512ExploitTechnical DescriptionThird Party Advisorynvd

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