{"id":"CVE-2026-7747","state":"PUBLISHED","title":"Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow","description":"A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","publishedAt":"2026-05-04T08:15:14.596Z","updatedAt":"2026-05-04T12:43:29.421Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["Totolink N300RH"],"affected":[{"vendor":"Totolink","product":"N300RH","versions":[{"version":"3.2.4-B20220812","status":"affected"}],"cpes":["cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"]}],"references":["https://vuldb.com/vuln/360922","https://vuldb.com/vuln/360922/cti","https://vuldb.com/submit/807201","https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-loginauth_password-34553a41781f80c0ad36f4d95122fd40?pvs=73","https://www.totolink.net/"],"weaknesses":["CWE-120","CWE-119"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/7xxx/CVE-2026-7747.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-7747","state":"PUBLISHED","datePublished":"2026-05-04T08:15:14.596Z","dateUpdated":"2026-05-04T12:43:29.421Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-05-03T17:20:44.653Z"},"containers":{"cna":{"title":"Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow","descriptions":[{"lang":"en","value":"A security flaw has been discovered in Totolink N300RH 3.2.4-B20220812. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument Password results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks."}],"affected":[{"vendor":"Totolink","product":"N300RH","versions":[{"version":"3.2.4-B20220812","status":"affected"}],"cpes":["cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"]}],"references":[{"url":"https://vuldb.com/vuln/360922","name":"VDB-360922 | Totolink N300RH Parameter cstecgi.cgi loginauth buffer overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/360922/cti","name":"VDB-360922 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/807201","name":"Submit #807201 | Totolink N300RH N300RH V3_Firmware V3.2.4-B20220812 Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-loginauth_password-34553a41781f80c0ad36f4d95122fd40?pvs=73","tags":["exploit"]},{"url":"https://www.totolink.net/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":9.3,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseSeverity":"CRITICAL"}},{"cvssV3_1":{"version":"3.1","baseScore":9.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"cvssV3_0":{"version":"3.0","baseScore":9.8,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","baseSeverity":"CRITICAL"}},{"cvssV2_0":{"version":"2.0","baseScore":10,"vectorString":"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","type":"CWE","lang":"en","description":"Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-05-04T08:15:14.596Z"},"timeline":[{"time":"2026-05-03T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-05-03T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-05-03T19:25:59.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"wxhwxhwxh_mie (VulDB User)","type":"reporter"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-04T12:43:10.785712Z","id":"CVE-2026-7747","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-04T12:43:29.421Z"}}]}}}