{"id":"CVE-2021-43517","aliases":["EUVD-2021-30446","GHSA-jwqr-7c83-vxpx"],"status":"published","title":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor...","description":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01717,"percentile":0.77634,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-04-08T16:11:00Z","modified":"2026-06-17T04:11:03Z","products":[{"vendor":"foscam","product":"fi9805e_firmware"}],"references":[{"url":"https://habr.com/ru/post/486856/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43517"},{"url":"https://github.com/advisories/GHSA-jwqr-7c83-vxpx"}],"sources":{"cve":[{"id":"CVE-2021-43517","description":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.","status":"published","published":"2022-04-08T16:11:00Z","modified":"2024-08-04T03:55:29.314Z","updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-30446","description":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.","status":"published","published":"2022-04-08T16:11:00Z","modified":"2024-08-04T03:55:29Z","updated_at":"2026-11-03T03:24:13.772922Z"}],"ghsa":[{"id":"GHSA-jwqr-7c83-vxpx","title":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor...","description":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.","status":"published","published":"2022-04-09T00:00:25Z","modified":"2023-01-27T05:01:24Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T14:41:53.158957Z"}],"nvd":[{"id":"CVE-2021-43517","description":"FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.","status":"published","published":"2022-04-08T17:15:08.627Z","modified":"2026-06-17T04:11:03.437Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:05.581807Z"}]}}