{"affected":[{"product":"CA300-PoE","source":"CNA: VulDB","vendor":"TOTOLINK","versions":[{"status":"affected","version":"6.2c.884"}]}],"cveId":"CVE-2026-123960","cwes":["CWE-120","CWE-119"],"description":"A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument pppoeUser/priDns/secDns can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.","epss":null,"exploits":[{"kind":"exploit","source":"CNA: VulDB","url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWanConfig-3f953a41781f80ec86f3c2840cb5fc4b?source=copy_link"}],"kev":null,"metrics":[{"score":9.4,"severity":"critical","source":"CNA: VulDB","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","version":"4.0"},{"score":9.9,"severity":"critical","source":"CNA: VulDB","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.1"},{"score":9.9,"severity":"critical","source":"CNA: VulDB","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.0"},{"score":9,"severity":"critical","source":"CNA: VulDB","vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C","version":"2.0"},{"score":8.6,"severity":"high","source":"NVD: cna@vuldb.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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","version":"4.0"},{"score":9.9,"severity":"critical","source":"NVD: cna@vuldb.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},{"score":9,"severity":"high","source":"NVD: cna@vuldb.com","vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","version":"2.0"}],"modifiedAt":1794046632530,"publishedAt":1794045625794,"references":[{"source":"CNA: VulDB","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/432023"},{"source":"CNA: VulDB","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/432023/cti"},{"source":"CNA: VulDB","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-123960"},{"source":"CNA: VulDB","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/1033722"},{"source":"CNA: VulDB","tags":["exploit"],"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWanConfig-3f953a41781f80ec86f3c2840cb5fc4b?source=copy_link"},{"source":"CNA: VulDB","tags":["product"],"url":"https://www.totolink.net/"},{"source":"cna@vuldb.com","tags":[],"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWanConfig-3f953a41781f80ec86f3c2840cb5fc4b?source=copy_link"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/cve/CVE-2026-123960"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/submit/1033722"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/vuln/432023"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/vuln/432023/cti"},{"source":"cna@vuldb.com","tags":[],"url":"https://www.totolink.net/"}],"remediation":[],"revision":"1542dfd11755ca9c124d8354357077f6e44a7a6170a3ec800a21650393bd341e","sources":[{"modifiedAt":1794045625794,"name":"CNA: VulDB","retrievedAt":1794049731428,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123960"},{"modifiedAt":1794046632530,"name":"NVD","retrievedAt":1794053784001,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123960"}],"ssvc":null,"status":"published","title":"TOTOLINK CA300-PoE cstecgi.cgi setWanConfig buffer overflow","updatedAt":1794053784001}