CVE-2026-3561: (Pwn2Own) Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability
Philips Hue Bridge hkhap 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-3561?
CVE-2026-3561 is classified as a high-severity remote code execution vulnerability.
How do I fix CVE-2026-3561?
To fix CVE-2026-3561, ensure your Philips Hue Bridge software is updated to the latest version provided by Philips.
Who is affected by CVE-2026-3561?
CVE-2026-3561 affects users of Philips Hue Bridge devices with vulnerable versions.
What type of vulnerability is CVE-2026-3561?
CVE-2026-3561 is a heap-based buffer overflow vulnerability that allows arbitrary code execution.
Can CVE-2026-3561 be exploited remotely?
Yes, CVE-2026-3561 can be exploited by network-adjacent attackers.