CVE-2026-3557

Philips Hue Bridge hap_pair_verify_handler Sub-TLV Parsing 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 hap_pair_verify_handler function of the hk_hap service, which listens on TCP port 8080 by default. 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 root. Was ZDI-CAN-28337.

CVSS v3 8.0 HIGH

8.0^/10

CVSS v3 : HIGH

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

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.zerodayinitiative.com/advisories/ZDI-26-155/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:philips:hue_bridge_v2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:philips:hue_bridge_v2:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-16 14:19

Updated : 2026-06-17 10:43

NVD link : CVE-2026-3557

Mitre link : CVE-2026-3557

CVE.ORG link : CVE-2026-3557

JSON object : View

Products Affected

philips

hue_bridge_v2
hue_bridge_v2_firmware

CWE

CWE-122

Heap-based Buffer Overflow

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