{"id":"CVE-2026-123958","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-123958","summary":"A vulnerability was identified in TOTOLINK CA300-PoE 6.2c.884. The affected element is the function setLanConfig of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument…","details":"A vulnerability was identified in TOTOLINK CA300-PoE 6.2c.884. The affected element is the function setLanConfig of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument lanDns/lanSecDns/langType leads to buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.","published":"2026-11-07T09:17:15.177","modified":"2026-11-07T09:17:15.370","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setLanConfig-3f953a41781f8029941cd21d2cc16db0?source=copy_link"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-123958"},{"type":"WEB","url":"https://vuldb.com/submit/1033673"},{"type":"WEB","url":"https://vuldb.com/vuln/432021"},{"type":"WEB","url":"https://vuldb.com/vuln/432021/cti"},{"type":"WEB","url":"https://www.totolink.net/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-07T09:17:15.370"}}