Authentication Bypass in Philips Hue Bridge HomeKit Protocol
CVE-2026-3558

8.1HIGH

Key Information:

Vendor

Philips
Status
Hue Bridge
Vendor
CVE Published:
13 March 2026

What is CVE-2026-3558?

A vulnerability in the Philips Hue Bridge allows network-adjacent attackers to bypass authentication due to a configuration flaw in the HomeKit Accessory Protocol service. By exploiting this flaw, an attacker can access functionalities on the Hue Bridge without authentication, as the service listens on TCP port 8080 by default. This presents significant security risks for users, permitting unauthorized access to connected home devices.

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Affected Version(s)

Hue Bridge 1.73.1973146020

References

https://www.zerodayinitiative.com/advisories/ZDI-26-156/
x_research-advisory

CVSS V3.0

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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