Heap-based Buffer Overflow Risk in Philips Hue Bridge HomeKit Setup
CVE-2026-3556

8.8HIGH

Key Information:

Vendor

Philips
Status
Hue Bridge
Vendor
CVE Published:
13 March 2026

What is CVE-2026-3556?

There exists a vulnerability in the Philips Hue Bridge related to the HomeKit pair-setup, which can lead to a heap-based buffer overflow. This security flaw allows attackers on the same network to exploit the hk_hap_pair_storage_put function, where insufficient validation of user-supplied data length before copying leads to potential arbitrary code execution. Notably, this vulnerability does not require authentication, enabling attackers to target affected installations easily.

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Affected Version(s)

Hue Bridge 1.73.1973146020

References

https://www.zerodayinitiative.com/advisories/ZDI-26-154/
x_research-advisory

CVSS V3.0

Score:
8.8
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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