Is CVE-2026-3558 actively exploited?

No active exploitation of CVE-2026-3558 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3558 be exploited remotely?

Partially. CVE-2026-3558 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-3558?

CVE-2026-3558 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-3558

HIGH

CVE-2026-3558

CWE-306Published: March 16, 2026· Updated: Mar 16, 2026

8.1

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:6.3th

Official Description

Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode 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 HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28374.

NVD Source

Technical Analysis

CVE-2026-3558 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.