ZDI-CAN-28374: ZDI-26-156: (Pwn2Own) Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system.
Other sources
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-3558.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-28374?
The severity of ZDI-CAN-28374 is critical due to the ability for attackers to bypass authentication.
How do I fix ZDI-CAN-28374?
To fix ZDI-CAN-28374, update your Philips Hue Bridge firmware to the latest version provided by Philips.
What types of attacks can ZDI-CAN-28374 facilitate?
ZDI-CAN-28374 can facilitate unauthorized access and control over the Philips Hue Bridge.
Who is affected by ZDI-CAN-28374?
All users of Philips Hue Bridge are potentially affected by ZDI-CAN-28374.
Is ZDI-CAN-28374 actively being exploited?
There have been reports of ZDI-CAN-28374 being actively exploited in the wild.