Advisory Details

March 6th, 2026

(Pwn2Own) Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass Vulnerability

CVE ID	CVE-2026-3559
CVSS SCORE	8.1, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
AFFECTED VENDORS	Philips
AFFECTED PRODUCTS	Hue Bridge
VULNERABILITY DETAILS	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.
ADDITIONAL DETAILS	Fixed in Bridge v2 Software version 1975170000 https://www.philips-hue.com/en-ca/support/release-notes/bridge
DISCLOSURE TIMELINE	2025-11-18 - Vulnerability reported to vendor 2026-03-06 - Coordinated public release of advisory 2026-03-06 - Advisory Updated
CREDIT	Ho Xuan Ninh (@Xuanninh1412) and Hoang Hai Long (@seadragnol) from Qrious Secure (@qriousec)

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