{"id":"CVE-2026-121600","title":"TOTOLINK A950RG MAC Filter cstecgi.cgi setMacFilterRules stack-based overflow","summary":"A flaw has been found in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this vulnerability is the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component MAC Filter Handler. This manipulation of the argument add…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","cvssSource":"cna","cwe":["CWE-121","CWE-119"],"vendor":"TOTOLINK","product":"A950RG","affected":["A950RG 4.1.2cu.5268_B20221104"],"published":"2026-11-04","updated":"2026-11-04","sourceUpdated":"2026-11-04T00:45:35.387Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121600","references":[{"url":"https://vuldb.com/vuln/430442","label":"VDB-430442 | TOTOLINK A950RG MAC Filter cstecgi.cgi setMacFilterRules stack-based overflow"},{"url":"https://vuldb.com/vuln/430442/cti","label":"VDB-430442 | CTI Indicators (IOB, IOC, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-121600","label":"CVE-2026-121600 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1022562","label":"Submit #1022562 | TOTOLINK A950RG V4.1.2cu.5268_B20221104 Stack Buffer Overflow"},{"url":"https://gist.github.com/H3rmesk1t/217c00b12e04fcde07c453a55579f808"},{"url":"https://www.totolink.net/"}],"tags":["cve.org"],"epss":0.00466,"epssPercentile":0.40489,"ingestedAt":"2026-11-05T20:33:06.655Z","slug":"CVE-2026-121600","body":"## Overview\n\nA flaw has been found in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this vulnerability is the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component MAC Filter Handler. This manipulation of the argument addEffect causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.\n\n## Affected\n\n- `A950RG 4.1.2cu.5268_B20221104`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}