HOMEVULNERABILITIESCVE-2018-3833
HIGH

CVE-2018-3833

NVD-CWE-noinfoPublished: August 23, 2018· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2018-3833 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

insteon2 product(s)
hub 2245-222 firmwarehub 2245-222
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (2)

→
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512Exploit · Technical Description · Third Party Advisory
→
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0512Exploit · Technical Description · Third Party Advisory

Quick Facts

CVE IDCVE-2018-3833
CVSS Score7.5 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedAug 23, 2018

Related CVEs (NVD-CWE-noinfo)

CVE-2008-6566
10.0
CVE-2009-1178
10.0
CVE-2009-2543
10.0
CVE-2008-6546
10.0
CVE-2026-46798
10.0
CVE-2009-1216
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-3833 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2018-3833·NVD