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 2026-03-13.

How severe is CVE-2026-3559?

High severity. CVSS v3 base score is 8.1 out of 10.

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 i…

EPSS: 0.002 (36.5th 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

Weakness classification (CWE)

CWE-323 — Reusing a Nonce, Key Pair in Encryption

References

ZDI-26-157 (x_research-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 2026-03-13.
How severe is CVE-2026-3559?: High severity. CVSS v3 base score is 8.1 out of 10.