(Pwn2Own) Philips Hue Bridge HomeKit Pair-Setup Heap-based Buffer Overflow Remote Code Execution Vulnerability

March 6th, 2026
ZDI-26-154 ZDI-CAN-28326

CVE ID

CVE-2026-3556

CVSS Score

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

Affected Vendors

Philips

Affected Products

Hue Bridge

Vulnerability Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the hk_hap_pair_storage_put function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the HomeKit service.

Additional Details

Fixed in Bridge v2 Software version 1975170000
https://www.philips-hue.com/en-ca/support/release-notes/bridge


Disclosure Timeline

  • 2025-11-18 - Vulnerability reported to vendor
  • 2026-03-06 - Coordinated public release of advisory
  • 2026-03-06 - Advisory Updated

Credit

InnoEdge Labs

Back to Advisories