{"id":"CVE-2026-121599","title":"TOTOLINK A950RG Multi-SSID Configuration cstecgi.cgi delWiFiMultipleConfig stack-based overflow","summary":"A vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected is the function setWiFiMultipleConfig/delWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi of the component Multi-SSID Configuration. The manipulation of …","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":"2026-11-04T00:30:26.769Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121599","references":[{"url":"https://vuldb.com/vuln/430441","label":"VDB-430441 | TOTOLINK A950RG Multi-SSID Configuration cstecgi.cgi delWiFiMultipleConfig stack-based overflow"},{"url":"https://vuldb.com/vuln/430441/cti","label":"VDB-430441 | CTI Indicators (IOB, IOC, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-121599","label":"CVE-2026-121599 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1022561","label":"Submit #1022561 | TOTOLINK A950RG V4.1.2cu.5268_B20221104 Stack Buffer Overflow"},{"url":"https://gist.github.com/H3rmesk1t/44673654282c9b21bc8971bab7e4b8a3"},{"url":"https://www.totolink.net/"}],"tags":["cve.org"],"epss":0.00466,"epssPercentile":0.40489,"ingestedAt":"2026-11-05T20:33:06.653Z","slug":"CVE-2026-121599","body":"## Overview\n\nA vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected is the function setWiFiMultipleConfig/delWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi of the component Multi-SSID Configuration. The manipulation of the argument wepkey2/wepkey3 results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public 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":[]}