CVE-2026-3559: (Pwn2Own) Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass Vulnerability
Philips Hue Bridge HomeKit Accessory Protocol Static Nonce 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 SRP authentication mechanism in the HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the use of a static nonce value. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28451.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-3559?
CVE-2026-3559 has been rated as high severity due to its potential to allow unauthorized access to the Philips Hue Bridge.
How do I fix CVE-2026-3559?
To fix CVE-2026-3559, ensure that your Philips Hue Bridge is updated to the latest firmware provided by Philips.
What types of attacks can exploit CVE-2026-3559?
CVE-2026-3559 can be exploited by network-adjacent attackers to bypass authentication mechanisms.
Which devices are affected by CVE-2026-3559?
CVE-2026-3559 affects the Philips Hue Bridge and any installations using the HomeKit Accessory Protocol.
Can CVE-2026-3559 lead to further exploitation?
Yes, successfully exploiting CVE-2026-3559 can allow attackers to gain unauthorized control over connected Hue devices.