{"affected":[{"product":"CA300-PoE","source":"CNA: VulDB","vendor":"TOTOLINK","versions":[{"status":"affected","version":"6.2c.884"}]}],"cveId":"CVE-2026-123959","cwes":["CWE-120","CWE-119"],"description":"A security flaw has been discovered in TOTOLINK CA300-PoE 6.2c.884. The impacted element is the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument langType results in buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.","epss":null,"exploits":[{"kind":"exploit","source":"CNA: VulDB","url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setLanguageCfg-3f953a41781f80199f44f227136a1441?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:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","version":"4.0"},{"score":9.1,"severity":"critical","source":"CNA: VulDB","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","version":"3.1"},{"score":9.1,"severity":"critical","source":"CNA: VulDB","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","version":"3.0"},{"score":8.3,"severity":"high","source":"CNA: VulDB","vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:C","version":"2.0"},{"score":8.5,"severity":"high","source":"NVD: cna@vuldb.com","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","version":"4.0"},{"score":9.1,"severity":"critical","source":"NVD: cna@vuldb.com","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},{"score":8.3,"severity":"high","source":"NVD: cna@vuldb.com","vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C","version":"2.0"}],"modifiedAt":1794046632310,"publishedAt":1794044726355,"references":[{"source":"CNA: VulDB","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/432022"},{"source":"CNA: VulDB","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/432022/cti"},{"source":"CNA: VulDB","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-123959"},{"source":"CNA: VulDB","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/1033721"},{"source":"CNA: VulDB","tags":["exploit"],"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setLanguageCfg-3f953a41781f80199f44f227136a1441?source=copy_link"},{"source":"CNA: VulDB","tags":["broken-link","product"],"url":"https://www.totolink.net/"},{"source":"cna@vuldb.com","tags":[],"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setLanguageCfg-3f953a41781f80199f44f227136a1441?source=copy_link"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/cve/CVE-2026-123959"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/submit/1033721"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/vuln/432022"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/vuln/432022/cti"},{"source":"cna@vuldb.com","tags":[],"url":"https://www.totolink.net/"}],"remediation":[],"revision":"b80c02236b23d052ef9bb5e02ccd897cffab2660b4b3271b1800d065d8aa0cad","sources":[{"modifiedAt":1794044726355,"name":"CNA: VulDB","retrievedAt":1794046137474,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123959"},{"modifiedAt":1794046632310,"name":"NVD","retrievedAt":1794053783798,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123959"}],"ssvc":null,"status":"published","title":"TOTOLINK CA300-PoE cstecgi.cgi setLanguageCfg buffer overflow","updatedAt":1794053783798}