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Vulnerability record · CVE-2024-4497 · published 5 May 2024

CVE-2024-4497: Tenda i21 firmware stack-based buffer overflow vulnerability

Tenda · I21 Firmware

A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been declared as critical. This vulnerability affects the function formexeCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-263086 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

8.8 CVSS 3.1 High EPSS 1.5% · top 27.6% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 9.0
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been declared as critical. This vulnerability affects the function formexeCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-263086 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formexeCommand.md Broken Link
https://vuldb.com/?ctiid.263086 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/?id.263086 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.323607 Third Party AdvisoryVDB Entry
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formexeCommand.md Broken Link
https://vuldb.com/?ctiid.263086 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/?id.263086 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.323607 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-44362Tenda i21 firmware out-of-bounds write vulnerabilityTenda i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/AddSysLogRule.EPSS 0.94%9.8CVE-2022-44363Tenda i21 firmware out-of-bounds write vulnerabilityTenda i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/setSnmpInfo.EPSS 0.78%9.8CVE-2022-44365Tenda i21 firmware out-of-bounds write vulnerabilityTenda i21 V1.0.0.14(4656) has a stack overflow vulnerability via /goform/setSysPwd.EPSS 0.94%9.8CVE-2022-44366Tenda i21 firmware out-of-bounds write vulnerabilityTenda i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/setDiagnoseInfo.EPSS 9.9%9.8CVE-2022-44367Tenda i21 firmware out-of-bounds write vulnerabilityTenda i21 V1.0.0.14(4656) is vulnerable to Buffer Overflow via /goform/setUplinkInfo.EPSS 0.94%8.8CVE-2024-4496Tenda i21 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda i21 1.0.0.14(4656). It has been classified as critical. This affects the function formWifiMacFilterSet. The manipu…EPSS 1.5%8.8CVE-2024-4495Tenda i21 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda i21 1.0.0.14(4656) and classified as critical. Affected by this issue is the function formWifiMacFilterGet. The ma…EPSS 1.5%8.8CVE-2024-4494Tenda i21 firmware stack-based buffer overflow vulnerabilityA vulnerability has been found in Tenda i21 1.0.0.14(4656) and classified as critical. Affected by this vulnerability is the function formSetUplinkIn…EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2024-4497), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.