{"id":"CVE-2021-46262","aliases":["EUVD-2021-32962","GHSA-xvr7-55fh-xx8f"],"status":"published","title":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in...","description":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the PPPoE module. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.","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":"2026-11-09","score":0.01734,"percentile":0.77809,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2022-02-15T19:08:28Z","modified":"2026-06-17T04:14:41Z","products":[{"vendor":"tenda","product":"ac11_firmware"}],"references":[{"url":"https://github.com/Ainevsia/CVE-Request/tree/main/Tenda/7","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46262"},{"url":"https://github.com/advisories/GHSA-xvr7-55fh-xx8f"}],"sources":{"cve":[{"id":"CVE-2021-46262","description":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the PPPoE module. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.","status":"published","published":"2022-02-15T19:08:28Z","modified":"2024-08-04T05:02:11.322Z","updated_at":"2026-11-02T14:33:03.320536Z"}],"euvd":[{"id":"EUVD-2021-32962","description":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the PPPoE module. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.","status":"published","published":"2022-02-15T19:08:28Z","modified":"2024-08-04T05:02:11Z","updated_at":"2026-11-03T03:08:24.142295Z"}],"ghsa":[{"id":"GHSA-xvr7-55fh-xx8f","title":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in...","description":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the PPPoE module. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.","status":"published","published":"2022-02-16T00:01:06Z","modified":"2023-02-03T05:05:55Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:49.274652Z"}],"nvd":[{"id":"CVE-2021-46262","description":"Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the PPPoE module. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.","status":"published","published":"2022-02-15T20:15:07.527Z","modified":"2026-06-17T04:14:41.827Z","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":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:04.6896Z"}]}}