{"id":"CVE-2026-123957","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-123957","summary":"A vulnerability was determined in TOTOLINK CA300-PoE 6.2c.884. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes…","details":"A vulnerability was determined in TOTOLINK CA300-PoE 6.2c.884. Impacted is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ipStart causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.","published":"2026-11-07T09:17:14.890","modified":"2026-11-07T09:17:15.120","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-setIpQosRules-3f953a41781f801195e5e07dfe7488b9?source=copy_link"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-123957"},{"type":"WEB","url":"https://vuldb.com/submit/1033672"},{"type":"WEB","url":"https://vuldb.com/vuln/432020"},{"type":"WEB","url":"https://vuldb.com/vuln/432020/cti"},{"type":"WEB","url":"https://www.totolink.net/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-07T09:17:15.120"}}