CVE-2026-3561

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.73.1973146020"}}], "enrichment": {"confidence": 97.0, "confidence_source": "matching", "scores": [{"score": 97.0, "source": "matching"}]}, "original": {"product": "Hue Bridge", "source": "cna", "vendor": "Philips"}, "product": "hue_bridge", "vendor": "phillips"}], "analysis": {"en": {"generated_at": "2026-03-16T23:44:09.428233+00:00", "value": {"mitigation_remediation": ["Apply the latest official firmware update for Philips Hue Bridge as soon as it becomes available.", "Restrict network access to the Hue Bridge by placing it on a separate VLAN or using firewall rules to allow only trusted devices to communicate with it.", "Monitor Hue Bridge logs and network traffic for unusual PUT requests to the characteristics endpoint, and investigate any suspicious activity promptly."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The affected product is Philips Hue Bridge. No specific firmware or model versions are listed in the provided data, so all current installations may be vulnerable until an official patch is released.", "description_and_impact": "The vulnerability is a heap\u2011based buffer overflow in the hk_hap characteristics endpoint of Philips Hue Bridge. An attacker can send oversized data in a PUT request to the characteristics endpoint, bypassing the existing authentication mechanism due to improper validation of the length of user\u2011supplied data. This flaw (CWE\u2011122) allows the attacker to execute arbitrary code in the device\u2019s context, resulting in a full compromise of confidentiality, integrity, and availability.", "risk_and_exploitability": "The CVSS score of 8.0 indicates high severity. The EPSS score of less than 1% suggests a relatively low probability of exploitation at the moment, and the vulnerability is not listed in CISA\u2019s KEV catalog. Exploitation requires an adversary to be network\u2011adjacent to the Hue Bridge and to send a crafted PUT request to the characteristics endpoint. Authentication can be bypassed, so the attack vector is local network, pre\u2011authenticated, and relatively straightforward for a nearby attacker."}}}}, "created": "2026-03-16T09:23:43.048728+00:00", "updated": "2026-03-23T13:39:49.140031+00:00", "vendors": ["phillips", "phillips$PRODUCT$hue_bridge"]}