CVE-2024-4240

8.8 highEPSS 1.5%

High (8.8) in tenda w9 firmware. EPSS 1.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-121
Published: 2024-04-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:w9_firmware

References

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W9/formQosManageDouble_auto.md
https://vuldb.com/?ctiid.262131
https://vuldb.com/?id.262131
https://vuldb.com/?submit.319822
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W9/formQosManageDouble_auto.md

Check your stack JSON