{"id":"CVE-2026-19814","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-19814","summary":"A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Performing a…","details":"A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Performing a manipulation of the argument macAddress results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.","published":"2026-08-14T09:16:47.883","modified":"2026-08-14T09:16:47.883","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/setMacQos.md"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-19814"},{"type":"WEB","url":"https://vuldb.com/submit/869431"},{"type":"WEB","url":"https://vuldb.com/vuln/389950"},{"type":"WEB","url":"https://vuldb.com/vuln/389950/cti"},{"type":"WEB","url":"https://www.totolink.net/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T09:16:47.883"}}