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Hue Bridge EUVDEUVD-2026-12161

| CVE-2026-3560 HIGH
Heap-based Buffer Overflow (CWE-122)
2026-03-13 zdi
8.8
CVSS 3.0 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Craft malicious HomeKit pairing request
  2. Exploit
    Send to TCP port 8080
  3. Execution
    Trigger buffer overflow in hk_hap_pair_storage_put
  4. Impact
    Execute arbitrary code on bridge

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Heap buffer bounds checking
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Philips Hue Bridge with HomeKit implementation enabled and listening on TCP port 8080 (default). Network-adjacent access required. No authentication needed.

Impact

The CVSS 8.8 score indicates high severity due to adjacent network access (AV:A), low complexity (AC:L), no authentication required (PR:N), and high impact across confidentiality, integrity, and availability. However, the adjacent network requirement significantly limits the attack surface compared to remote vulnerabilities. No EPSS data suggests exploitation likelihood hasn't been measured. The vulnerability is not in CISA's KEV catalog, indicating no known active exploitation. Without a public POC and given the local network access requirement, this represents a moderate real-world risk primarily in environments where untrusted devices share the same network segment as Hue Bridges.

Exploit ScenarioDerived

An attacker on the same network segment as the Hue Bridge (e.g., compromised IoT device, malicious insider, or guest network spillover) sends specially crafted HomeKit protocol messages to TCP port 8080. The malformed data triggers the heap overflow in hk_hap_pair_storage_put, allowing the attacker to overwrite memory structures and execute arbitrary code on the device. This could lead to persistent backdoor installation, smart home manipulation, or lateral movement into the home network. No authentication is required, making any adjacent network access sufficient for exploitation.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 13, 2026

Heap-based buffer overflow vulnerability in Philips Hue Bridge's HomeKit implementation that allows unauthenticated network-adjacent attackers to execute arbitrary code. The vulnerability affects all versions of Philips Hue Bridge (CPE indicates no version restrictions) through the hk_hap_pair_storage_put function on TCP port 8080. No EPSS data or KEV listing is available, and while ZDI has published an advisory, no public POC or active exploitation has been reported.

RemediationAI

No patch information or vendor advisory is currently available beyond the ZDI advisory (ZDI-26-158). As immediate mitigation, network segmentation should be implemented to isolate Hue Bridge devices from untrusted network segments. Consider disabling HomeKit integration if not required, or implement firewall rules to restrict access to TCP port 8080 to trusted devices only. Monitor Philips/Signify security advisories for firmware updates addressing this vulnerability.

Affected VersionsENISA

Hue Bridge 1.73.1973146020

Affected Packages

euvd hue_bridge no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability exists in the HomeKit Accessory Protocol (HAP) implementation within Philips Hue Bridge devices (cpe:2.3:a:philips:hue_bridge:*:*:*:*:*:*:*:*). HomeKit is Apple's smart home framework, and the Hue Bridge integrates with it via TCP port 8080. The flaw is a classic heap buffer overflow (CWE-122) where the hk_hap_pair_storage_put function fails to validate the length of user-supplied data before copying it to a heap buffer. This allows attackers to overwrite adjacent memory structures and potentially hijack program execution flow.

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Severity by source

NVD PRIMARY 8.8 HIGH
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Philips Hue Bridge HomeKit hk_hap_pair_storage_put 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 of the HomeKit implementation, 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 the device. Was ZDI-CAN-28469.

Executive ViewAI

Why It Matters

CVE-2026-3560 is a critical remote code execution vulnerability affecting all Philips Hue Bridge devices, allowing attackers on the same network to take complete control without authentication. This poses a significant risk to organizations using smart lighting infrastructure, potentially compromising network security and enabling lateral movement into connected systems.

Business Impact: High
Compensating Controls

Segment Philips Hue Bridge devices to an isolated VLAN with no direct access from general networks. Restrict inbound TCP port 8080 access via firewall rules to authorized management systems only. Deploy IDS/IPS signatures to detect exploitation attempts. Consider disabling HomeKit functionality if not critical to operations. Monitor for suspicious HomeKit pairing requests and network anomalies. Patch immediately upon vendor release.

Threat Intelligence Overview

EPSS Score
0.1%
Top 78% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact
High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

A heap overflow occurs when a program writes data beyond the bounds of a buffer allocated in the heap memory region.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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