CVE-2026-3562: Philips Hue Bridge v2 Firmware

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Philips Hue Bridge hk_hap Ed25519 Signature Verification Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ed25519_sign_open function. The issue results from improper verification of a cryptographic signature. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28480.

Affected products

• Philips Hue Bridge v2 Firmware: before 1975170000 (fixed in 1975170000)

Published 2026-03-16. Last modified 2026-06-17.