{"id":"CVE-2021-40284","aliases":["EUVD-2021-27468","GHSA-jp7p-c272-p959"],"status":"published","title":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of...","description":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0263,"percentile":0.85728,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2021-09-09T16:18:25Z","modified":"2026-06-17T04:06:42Z","products":[{"vendor":"dlink","product":"dsl-3782_firmware"}],"references":[{"url":"https://www.dlink.com/en/security-bulletin/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10245","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40284"},{"url":"https://github.com/advisories/GHSA-jp7p-c272-p959"}],"sources":{"cve":[{"id":"CVE-2021-40284","description":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.","status":"published","published":"2021-09-09T16:18:25Z","modified":"2024-08-04T02:27:31.875Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27468","description":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.","status":"published","published":"2021-09-09T16:18:25Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:20.862157Z"}],"ghsa":[{"id":"GHSA-jp7p-c272-p959","title":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of...","description":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.","status":"published","published":"2022-05-24T19:13:59Z","modified":"2023-01-30T05:02:09Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:46:34.16886Z"}],"nvd":[{"id":"CVE-2021-40284","description":"D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.","status":"published","published":"2021-09-09T17:15:07.287Z","modified":"2026-06-17T04:06:42.333Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}