{"schemaVersion":3,"id":"CVE-2021-35393","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server that implements both UPnP and SSDP protocols. The binary is usually named wscd or mini_upnpd and is the successor to miniigd. The server is vulnerable to a stack buffer overflow vulnerability that is present due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header. Successful exploitation of this vulnerability allows remote unauthenticated attackers to gain arbitrary code execution on the affected device.","dates":{"published":"2021-08-16T11:07:46.000Z","modified":"2024-08-04T00:33:51.312Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":10,"severity":"high","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.68298,"percentile":0.99329,"severity":"critical","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":-2.0359999999999934,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.70334},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.68298,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.68298,"percentile":0.99329}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.70334,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.70334,"percentile":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