{"id":"CVE-2021-45391","aliases":["EUVD-2021-32164","GHSA-q94f-mv9v-w3h4"],"status":"published","title":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4...","description":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01826,"percentile":0.79103,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2022-02-16T13:13:26Z","modified":"2026-06-17T04:13:19Z","products":[{"vendor":"tenda","product":"ax12_firmware"}],"references":[{"url":"https://www.tenda.com.cn/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://tendawifi.com/index.html","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://www.tenda.com.cn/product/AX12.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/1","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45391"},{"url":"https://github.com/advisories/GHSA-q94f-mv9v-w3h4"}],"sources":{"cve":[{"id":"CVE-2021-45391","description":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.","status":"published","published":"2022-02-16T13:13:26Z","modified":"2024-08-04T04:39:20.547Z","updated_at":"2026-11-02T14:33:02.930115Z"}],"euvd":[{"id":"EUVD-2021-32164","description":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.","status":"published","published":"2022-02-16T13:13:26Z","modified":"2024-08-04T04:39:20Z","updated_at":"2026-11-03T03:08:27.448176Z"}],"ghsa":[{"id":"GHSA-q94f-mv9v-w3h4","title":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4...","description":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.","status":"published","published":"2022-02-17T00:00:33Z","modified":"2023-02-03T05:06:19Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:52.731364Z"}],"nvd":[{"id":"CVE-2021-45391","description":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in the goform/setIPv6Status binary file /usr/sbin/httpd via the conType parameter, which causes a Denial of Service.","status":"published","published":"2022-02-16T14:15:07.627Z","modified":"2026-06-17T04:13:19.777Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:04.6896Z"}]}}