CVE-2026-73669

Signify Philips Hue Bridge Pro MQTT broker missing authentication

State: Published
Severity: 6.9 Medium
Published: Aug 13, 2026
Updated: Aug 18, 2026
Reserved: Aug 13, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N	cisa-cg
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	cisa-cg

Weaknesses

CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
Philips Hue Bridge ProSignify	before 1.77.2071318010Affected 1.77.2071318010Not affected

References

url
urlrelease-notes
urlvdb-entry
urlthird-party-advisory

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