CVE-2026-73669 Signify Philips Hue Bridge Pro MQTT broker missing authentication
Unauthenticated attackers can read data and control connected lights via the MQTT broker on Philips Hue Bridge Pro devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73669?
CVE-2026-73669 is a medium-severity missing authorization vulnerability in Signify Philips Hue Bridge Pro, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-73669?
How do I fix CVE-2026-73669?
No fix has been published for CVE-2026-73669 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-73669 being exploited?
There is no known exploitation of CVE-2026-73669 in the wild and no public exploit code.
Sources
Also known as GHSA-43qc-c2gq-5fq2.