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    CVE-2026-3556

    Philips Hue Bridge HomeKit Pair-Setup 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. Authentication is not required to exploit this vulnerability. The specific flaw exists within the hk_hap_pair_storage_put function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the HomeKit service. Was ZDI-CAN-28326.

    Published:Mar 13, 2026
    Last Modified:Apr 27, 2026
    EPS:Mar 13, 2026
    EPSS Score:0.00099
    CVSS Score:8.8

    Affected Products

    Vendor
    Philips
    Product
    Hue Bridge V2
    Vendor
    Philips
    Product
    Hue Bridge V2 Firmware
    Vendor
    Phillips
    Product
    Hue Bridge

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-122 Heap-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-3562 (CVSS 8.8) — Philips Hue Bridge hk_hap Ed25519 Signature Verification Authentication Bypass Vulnerability. This vulnerabili…
    CVE-2026-3561 (CVSS 8) — Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability. This…
    CVE-2026-3560 (CVSS 8.8) — Philips Hue Bridge HomeKit hk_hap_pair_storage_put Heap-based Buffer Overflow Remote Code Execution Vulnerabil…
    CVE-2026-3559 (CVSS 8.1) — Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass Vulnerability. This vulnerabi…
    CVE-2026-3558 (CVSS 8.1) — Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability. This…
    CVE-2026-3557 (CVSS 8) — Philips Hue Bridge hap_pair_verify_handler Sub-TLV Parsing Heap-based Buffer Overflow Remote Code Execution Vu…
    CVE-2026-3555 (CVSS 8) — Philips Hue Bridge Zigbee Stack Custom Command Handler Heap-based Buffer Overflow Remote Code Execution Vulner…
    CVE-2020-6007 (CVSS 7.9) — Philips Hue Bridge model 2.X prior to and including version 1935144020 contains a Heap-based Buffer Overflow w…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High