{"id":"CVE-2024-4240","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-4240","generatedAt":"2026-10-28T04:44:56.360Z","title":"A vulnerability was found in Tenda W9 1.0.0.7(4456).","description":"A vulnerability was found in Tenda W9 1.0.0.7(4456). It has been classified as critical. This affects the function formQosManageDouble_user. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-262131. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.","published":"2024-04-26T21:15:50.000Z","lastModified":"2026-06-17T08:01:30.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"3.1","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"},"cwe":["CWE-121","CWE-787"],"affected":["tenda/w9 firmware"],"epss":{"score":0.01451,"percentile":0.73251,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W9/formQosManageDouble_auto.md","tags":["Broken Link"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.262131","tags":["Permissions Required","Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.262131","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.319822","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W9/formQosManageDouble_auto.md","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vuldb.com/?ctiid.262131","tags":["Permissions Required","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vuldb.com/?id.262131","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vuldb.com/?submit.319822","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-4240","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}