Improper Authentication in Hue Bridge V2 - CVE-2026-3558
Published: March 9, 2026
Vulnerability identifier: #VU123634
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3558
CWE-ID: CWE-287
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests within the configuration of the HomeKit Accessory Protocol service. A remote attacker on the local network can bypass authentication process and gain unauthorized access to the application.
Affected software
Hue Bridge V2
How to mitigate CVE-2026-3558
Install updates from vendor's website.
Hue Bridge V2 - update to 1975170000