{"id":"CVE-2026-124057","aliases":["EUVD-2026-119324","GHSA-5w7f-7pm8-j5vg"],"status":"published","title":"TOTOLINK CA300-PoE cstecgi.cgi setWiFiMultipleConfig buffer overflow","description":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. This impacts the function setWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument Key1Str1 results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","severity":{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00635,"percentile":0.50966,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-120"],"published":"2026-11-07T17:45:21Z","modified":"2026-11-07T18:31:49Z","products":[{"vendor":"totolink","product":"ca300-poe"}],"references":[{"url":"https://vuldb.com/vuln/432112","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/432112/cti","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-124057","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/1033754","tags":["third-party-advisory"]},{"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWiFiMultipleConfig-3f953a41781f800fab65eaa6a2887fa1?source=copy_link","tags":["exploit"]},{"url":"https://www.totolink.net/","tags":["product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124057"},{"url":"https://www.totolink.net"},{"url":"https://github.com/advisories/GHSA-5w7f-7pm8-j5vg"}],"sources":{"cve":[{"id":"CVE-2026-124057","title":"TOTOLINK CA300-PoE cstecgi.cgi setWiFiMultipleConfig buffer overflow","description":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. This impacts the function setWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument Key1Str1 results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","status":"published","published":"2026-11-07T17:45:21.624Z","modified":"2026-11-11T04:04:19.822Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical","assessor":"cna"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","level":"critical","assessor":"cna"},{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","level":"critical","assessor":"cna"},{"version":"2.0","score":8.3,"vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:C","assessor":"cna"}],"cwes":["CWE-120","CWE-119"],"updated_at":"2026-11-07T18:35:04.114717Z"}],"euvd":[{"id":"EUVD-2026-119324","description":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. This impacts the function setWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument Key1Str1 results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","status":"published","published":"2026-11-07T17:45:21Z","modified":"2026-11-11T04:04:19Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical"}],"updated_at":"2026-11-07T21:10:36.668629Z"}],"ghsa":[{"id":"GHSA-5w7f-7pm8-j5vg","title":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. This impacts the function...","description":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. This impacts the function setWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument Key1Str1 results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","status":"published","published":"2026-11-07T18:31:39Z","modified":"2026-11-07T18:31:49Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-07T18:38:39.596198Z"}],"nvd":[{"id":"CVE-2026-124057","description":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. This impacts the function setWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument Key1Str1 results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","status":"published","published":"2026-11-07T18:17:21.607Z","modified":"2026-11-11T05:19:35.813Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":8.3,"vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C","level":"high","assessor":"secondary"}],"cwes":["CWE-119","CWE-120"],"updated_at":"2026-11-11T07:23:50.496882Z"}]}}