EUVD-2026-12162
CVSS Vector
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of PUT requests to the characteristics endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28479.
Analysis
Heap-based buffer overflow vulnerability in Philips Hue Bridge devices that allows network-adjacent attackers to execute arbitrary code through malformed PUT requests to the HomeKit Accessory Protocol (HAP) characteristics endpoint. While authentication is normally required, the advisory notes the authentication mechanism can be bypassed, effectively allowing unauthenticated remote code execution. …
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Remediation
Within 24 hours: Inventory all Philips Hue Bridge deployments and isolate affected devices to a dedicated VLAN or network segment away from critical infrastructure. Within 7 days: Implement network-level controls (firewall rules, WAF policies blocking malformed PUT requests to HAP endpoints) and disable HomeKit Accessory Protocol if not actively used. …
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External POC / Exploit Code
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