{"cve":"CVE-2021-45392","nvd":{"published":"2022-02-14T17:15:07.883","modified":"2026-06-17T04:13:19.900","status":"Modified","description":"A Buffer Overflow vulnerability exists in Tenda Router AX12 V22.03.01.21_CN in the sub_422CE4 function in page /goform/setIPv6Status via the prefixDelegate parameter, which causes a Denial of Service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-787"],"references":["http://tendawifi.com/index.html","https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX12/2","https://www.tenda.com.cn/","https://www.tenda.com.cn/product/AX12.html","http://tendawifi.com/index.html"],"products":["tenda:ax12_firmware"],"source":"nvd","synced_at":"2026-10-19T21:28:04.509275555+00:00"},"epss":{"cve":"CVE-2021-45392","score":0.12294,"percentile":0.96187,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}