Philips Hue Bridge Pro MQTT broker missing authentication
Summary
| CVE | CVE-2026-73669 |
|---|---|
| State | PUBLISHED |
| Assigner | cisa-cg |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-13 20:17:30 UTC |
| Updated | 2026-08-13 20:17:30 UTC |
| Description | The Signify Philips Hue Bridge Pro firmware embeds a Mosquitto MQTT broker (v2.0.22) that listens on all network interfaces with anonymous access enabled and no firewall restriction. An attacker with access to the Bridge's network can read device data and control connected lights. |
Risk And Classification
Primary CVSS: v4.0 5.3 MEDIUM from 9119a7d8-5eab-497f-8521-727c672e3725
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-306 | CWE-306 CWE-306 Missing Authentication for Critical Function
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | 9119a7d8-5eab-497f-8521-727c672e3725 | Secondary | 5.3 | MEDIUM | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | DECLARED | 5.3 | MEDIUM | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
| 3.1 | 9119a7d8-5eab-497f-8521-727c672e3725 | Secondary | 6.3 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| 3.1 | CNA | DECLARED | 6.3 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
CVSS v4.0 Breakdown
Attack Vector
AdjacentAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
LowIntegrity
LowAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
AdjacentAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
LowCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Signify | Philips Hue Bridge Pro | affected 1.77.2071318010 custom | Not specified |
| CNA | Signify | Philips Hue Bridge Pro | unaffected 1.77.2071318010 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.cve.org/CVERecord | 9119a7d8-5eab-497f-8521-727c672e3725 | www.cve.org | |
| raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-225-01.json | 9119a7d8-5eab-497f-8521-727c672e3725 | raw.githubusercontent.com | |
| www.philips-hue.com/en-us/support/security-advisory | 9119a7d8-5eab-497f-8521-727c672e3725 | www.philips-hue.com | |
| www.philips-hue.com/en-us/support/release-notes/bridge-pro | 9119a7d8-5eab-497f-8521-727c672e3725 | www.philips-hue.com | |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Buğrahan KARAHAN (en)
There are currently no legacy QID mappings associated with this CVE.