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.
https://www.philips-hue.com/en-us/support/security-advisory
https://www.philips-hue.com/en-us/support/release-notes/bridge-pro
https://www.cve.org/CVERecord?id=CVE-2026-73669
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-225-01.json
Published: 2026-08-13
Updated: 2026-08-26
Base Score: 5.8
Vector: CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Severity: High
Base Score: 6.9
Vector: 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
Severity: Medium
EPSS: 0.00205