ZDI-26-159: (Pwn2Own) 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.
Other sources
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 ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2026-3561.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-26-159?
The severity of ZDI-26-159 is critical due to the potential for remote code execution by attackers.
How do I fix ZDI-26-159?
To fix ZDI-26-159, ensure that your Philips Hue Bridge is updated to the latest firmware version provided by Philips.
Who is affected by ZDI-26-159?
ZDI-26-159 affects users of the Philips Hue Bridge with the vulnerable versions that allow network-adjacent exploitation.
What type of attack does ZDI-26-159 allow?
ZDI-26-159 allows for a heap-based buffer overflow attack leading to arbitrary remote code execution.
Is authentication required to exploit ZDI-26-159?
Yes, authentication is required to exploit the ZDI-26-159 vulnerability on affected Philips Hue Bridge installations.