CVE-2026-3561
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Heap-Based Buffer Overflow in Philips Hue Bridge Enables RCE

Publication date: 2026-03-16

Last updated on: 2026-04-27

Assigner: Zero Day Initiative

Description
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.
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Meta Information
Published
2026-03-16
Last Modified
2026-04-27
Generated
2026-06-16
AI Q&A
2026-03-16
EPSS Evaluated
2026-06-15
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
philips hue_bridge_v2_firmware to 1975170000 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

CVE-2026-3561 is a heap-based buffer overflow vulnerability found in the Philips Hue Bridge device. It occurs specifically in the handling of PUT requests to the hk_hap characteristics endpoint. The flaw is due to improper validation of the length of user-supplied data before copying it into a heap-based buffer. Although exploiting this vulnerability requires authentication, the existing authentication mechanism can be bypassed by attackers who are network-adjacent.

This vulnerability allows attackers to execute arbitrary code remotely on the affected device, potentially taking control of it.

Impact Analysis

Exploitation of this vulnerability can have severe impacts including full compromise of the Philips Hue Bridge device. An attacker can execute arbitrary code remotely, which can lead to unauthorized control over the device.

  • Confidentiality impact: High - attackers can access sensitive information.
  • Integrity impact: High - attackers can modify device behavior or data.
  • Availability impact: High - attackers can disrupt device functionality.
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