CVE-2024-4247

8.8 highEPSS 1.5%

A vulnerability has been found in Tenda i21 1.0.0.14(4656) and classified as critical. This vulnerability affects the function formQosManage_auto. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. The attack can be initiated remotely. VDB-262138 is the identifier assigned to this vulnerability. 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: 2024-04-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:i21_firmware

References

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formQosManage_auto.md
https://vuldb.com/?ctiid.262138
https://vuldb.com/?id.262138
https://vuldb.com/?submit.319832
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formQosManage_auto.md

Check your stack JSON