{"id":"CVE-2026-121597","title":"TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflow","summary":"A weakness has been identified in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This affects the function setAppEasyWizardConfig of the file /cgi-bin/cstecgi.cgi of the component Easy Setup Wizard Handler. Executing a manipulation of the argum…","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":"2026-11-04T00:00:30.063Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121597","references":[{"url":"https://vuldb.com/vuln/430439","label":"VDB-430439 | TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflow"},{"url":"https://vuldb.com/vuln/430439/cti","label":"VDB-430439 | CTI Indicators (IOB, IOC, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-121597","label":"CVE-2026-121597 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1022558","label":"Submit #1022558 | TOTOLINK A950RG V4.1.2cu.5268_B20221104 Stack Buffer Overflow"},{"url":"https://gist.github.com/H3rmesk1t/49d6ccded59379651568e0bdc6b5624c"},{"url":"https://www.totolink.net/"}],"tags":["cve.org"],"epss":0.00601,"epssPercentile":0.48891,"ingestedAt":"2026-11-05T20:33:06.639Z","slug":"CVE-2026-121597","body":"## Overview\n\nA weakness has been identified in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This affects the function setAppEasyWizardConfig of the file /cgi-bin/cstecgi.cgi of the component Easy Setup Wizard Handler. Executing a manipulation of the argument functionType can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.\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":[]}