{"id":"CVE-2026-19811","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-19811","summary":"A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. The impacted element is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so.…","details":"A security flaw has been discovered in TOTOLINK A800R 4.1.2cu.5137_B20200730. The impacted element is the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. The manipulation of the argument Comment results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.","published":"2026-08-14T07:16:52.627","modified":"2026-08-14T07:16:52.627","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setIpQosRules.md"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-19811"},{"type":"WEB","url":"https://vuldb.com/submit/869425"},{"type":"WEB","url":"https://vuldb.com/vuln/389947"},{"type":"WEB","url":"https://vuldb.com/vuln/389947/cti"},{"type":"WEB","url":"https://www.totolink.net/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T07:16:52.627"}}