Vulnerability in Philips Hue Bridge
CVE-2026-3559
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.
EPSS: 0.004 (32.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Philips Hue Bridge — versions 1.73.1973146020
- Philips Hue_bridge_v2
- Philips Hue_bridge_v2_firmware
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-3559?
- CVE-2026-3559 is a high-severity vulnerability in Philips Hue Bridge, classified under Reusing a Nonce, Key Pair in Encryption. CVSS score: 8.1/10. Published 2026-03-16.
- How severe is CVE-2026-3559?
- High severity. CVSS v3 base score is 8.1 out of 10.