Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability

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Summary

CVECVE-2026-3558
StatePUBLISHED
Assignerzdi
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-16 14:19:48 UTC
Updated2026-04-27 14:48:21 UTC
DescriptionPhilips 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.

Risk And Classification

Primary CVSS: v3.0 8.1 HIGH from [email protected]

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.001140000 probability, percentile 0.297380000 (date 2026-04-27)

Problem Types: CWE-306 | CWE-306 CWE-306: Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.0[email protected]Secondary8.1HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.0CNACVSS8.1HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Philips Hue Bridge V2 - All All All
Operating System Philips Hue Bridge V2 Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Philips Hue Bridge affected 1.73.1973146020 Not specified

References

ReferenceSourceLinkTags
www.zerodayinitiative.com/advisories/ZDI-26-156 [email protected] www.zerodayinitiative.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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