{"id":"CVE-2021-45994","aliases":["EUVD-2021-32700","GHSA-p73x-c6m6-752w"],"status":"published","title":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the...","description":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.","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":"2026-11-10","score":0.01053,"percentile":0.64633,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2022-02-04T01:33:41Z","modified":"2026-06-17T04:14:23Z","products":[{"vendor":"tendacn","product":"g1_firmware"},{"vendor":"tendacn","product":"g3_firmware"}],"references":[{"url":"https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_12/12.md","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45994"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/218934","tags":["Third Party Advisory"]},{"url":"https://github.com/advisories/GHSA-p73x-c6m6-752w"}],"sources":{"cve":[{"id":"CVE-2021-45994","description":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.","status":"published","published":"2022-02-04T01:33:41Z","modified":"2024-08-04T04:54:31.118Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32700","description":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.","status":"published","published":"2022-02-04T01:33:41Z","modified":"2024-08-04T04:54:31Z","updated_at":"2026-11-03T03:08:25.222984Z"}],"ghsa":[{"id":"GHSA-p73x-c6m6-752w","title":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the...","description":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.","status":"published","published":"2022-02-09T00:00:44Z","modified":"2023-02-03T05:05:32Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:45.336505Z"}],"nvd":[{"id":"CVE-2021-45994","description":"Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formDelDhcpRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.","status":"published","published":"2022-02-04T02:15:08.897Z","modified":"2026-06-17T04:14:23.087Z","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":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}