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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.2.4 Build 260326 Rel.24666n)"}}], "enrichment": {"confidence": 81.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 81.0, "source": "matching"}]}, "original": {"product": "Tapo C520WS v2.6", "source": "cna", "vendor": "TP-Link Systems Inc."}, "product": "tapo_c520ws_v2", "vendor": "tp-link"}], "analysis": {"en": {"generated_at": "2026-04-02T22:32:06.079020+00:00", "value": {"mitigation_remediation": ["Download and install the latest firmware update for the Tapo C520WS from the TP\u2011Link support site.", "Verify that the device reports the new firmware version after the upgrade.", "If a firmware upgrade is not possible, isolate the camera from the network or disable video streaming to prevent remote exploitation.", "Monitor network traffic for malformed video stream packets that may indicate attempted exploitation.", "Review device logs for crash events and ensure alerts are configured for unresponsive behavior."], "summary": {"action": "Patch Upgrade", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "The vulnerability affects TP\u2011Link Systems Inc.\u2019s Tapo C520WS v2.6, a consumer\u2011grade security camera used in residential or small business environments. No other versions are listed as affected.", "description_and_impact": "A heap\u2011based buffer overflow occurs during asynchronous parsing of local video stream content, allowing an attacker on the same network to send crafted inputs that exceed buffer boundaries. Successful exploitation corrupts heap memory and crashes or freezes the device, leading to a denial of service.", "risk_and_exploitability": "The CVSS score of 7.1 indicates high severity. No EPSS score is available, so the exact likelihood of exploitation cannot be quantified. The attack requires local network access, but can be executed from any machine within the same segment, so a compromised or malicious device could trigger the DoS. The vulnerability is not currently catalogued in CISA\u2019s KEV list, suggesting no widespread exploitation has been documented. Mitigation should be pursued immediately because the denial of service could disrupt surveillance functions."}}}}, "created": "2026-04-03T08:58:10.612461+00:00", "updated": "2026-04-03T09:18:03.231656+00:00", "vendors": ["tp-link", "tp-link$PRODUCT$tapo_c520ws_v2"]}