Authentication Bypass in Philips Hue Bridge (CVE‑2026‑3562) Enables Remote Code Execution
What It Is – A flaw in the Ed25519 signature verification routine of the Philips Hue Bridge allows an attacker to bypass authentication and execute arbitrary code. The vulnerability (CVE‑2026‑3562) was disclosed by the Zero Day Initiative and carries a CVSS 6.3 (moderate) score.
Exploitability – The bug can be triggered by a network‑adjacent adversary without any credentials. No public exploit code has been released, but the advisory confirms that the attack vector is practical and the vulnerability is already patched in Bridge v2 1975170000.
Affected Products – Philips Hue Bridge (all firmware versions prior to 1975170000).
TPRM Impact –
- Smart‑lighting bridges are often deployed in corporate offices, hotels, and other managed environments; a compromised bridge can become a foothold for lateral movement.
- Third‑party integrators (building‑automation platforms, voice‑assistant services) may inherit the risk if they rely on the compromised bridge for authentication.
Recommended Actions –
- Verify firmware version on every Hue Bridge in your environment.
- Immediately upgrade to Bridge v2 1975170000 or later.
- Isolate IoT devices on a dedicated VLAN and enforce strict firewall rules.
- Deploy network‑traffic monitoring for anomalous outbound connections from Hue devices.
- Review any third‑party services that ingest Hue data for potential downstream exposure.