CVE-2026-73669: CWE-306 Missing Authentication for Critical Function in Signify Philips Hue Bridge Pro
The Signify Philips Hue Bridge Pro firmware embeds a Mosquitto MQTT broker service that listens on all network interfaces without authentication. An unauthenticated attacker with network access to the MQTT service on a vulnerable system can read data and control connected lights. Fixed in 1.77.2071318010.
AI Analysis
Technical Summary
The Philips Hue Bridge Pro firmware includes a Mosquitto MQTT broker that is exposed on all network interfaces without authentication controls. This missing authentication (CWE-306) enables unauthenticated attackers on the same network to access the MQTT service, potentially reading sensitive data and controlling connected lighting devices. The vulnerability has a CVSS v3.1 base score of 6.9, indicating a medium severity. The vendor fixed the issue in firmware version 1.77.2071318010.
Potential Impact
An attacker with network access to the MQTT service on a vulnerable Philips Hue Bridge Pro can read data transmitted via MQTT and control connected lights without authentication. This could lead to unauthorized control of smart lighting devices and potential privacy concerns related to data exposure.
Mitigation Recommendations
A fix is available in Philips Hue Bridge Pro firmware version 1.77.2071318010. Users should update to this version or later to remediate the vulnerability. No other mitigation guidance is provided.
CVE-2026-73669: CWE-306 Missing Authentication for Critical Function in Signify Philips Hue Bridge Pro
Description
The Signify Philips Hue Bridge Pro firmware embeds a Mosquitto MQTT broker service that listens on all network interfaces without authentication. An unauthenticated attacker with network access to the MQTT service on a vulnerable system can read data and control connected lights. Fixed in 1.77.2071318010.
CVSS v4.0
Score 6.9medium
Affected software
Signify
Philips Hue Bridge Pro
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Philips Hue Bridge Pro firmware includes a Mosquitto MQTT broker that is exposed on all network interfaces without authentication controls. This missing authentication (CWE-306) enables unauthenticated attackers on the same network to access the MQTT service, potentially reading sensitive data and controlling connected lighting devices. The vulnerability has a CVSS v3.1 base score of 6.9, indicating a medium severity. The vendor fixed the issue in firmware version 1.77.2071318010.
Potential Impact
An attacker with network access to the MQTT service on a vulnerable Philips Hue Bridge Pro can read data transmitted via MQTT and control connected lights without authentication. This could lead to unauthorized control of smart lighting devices and potential privacy concerns related to data exposure.
Mitigation Recommendations
A fix is available in Philips Hue Bridge Pro firmware version 1.77.2071318010. Users should update to this version or later to remediate the vulnerability. No other mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisa-cg
- Date Reserved
- 2026-08-13T14:20:28.541Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7e1a87bf8831d539b18440
Added to database: 08/13/2026, 19:27:03 UTC
Last enriched: 08/21/2026, 12:50:36 UTC
Last updated: 09/27/2026, 13:47:47 UTC
Views: 113
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