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Vulnerability record · CVE-2024-3909 · published 17 April 2024

CVE-2024-3909: Tenda ac500 firmware stack-based buffer overflow vulnerability

Tenda · Ac500 Firmware

A vulnerability classified as critical was found in Tenda AC500 2.0.1.9(1307). Affected by this vulnerability is the function formexeCommand of the file /goform/execCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-261145 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

9.8 CVSS 3.1 Critical EPSS 1.7% · top 24.1% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 9.0
1.7%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 classified as critical was found in Tenda AC500 2.0.1.9(1307). Affected by this vulnerability is the function formexeCommand of the file /goform/execCommand. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-261145 was 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:N/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/AC500/formexeCommand.md Broken Link
https://vuldb.com/?ctiid.261145 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/?id.261145 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.313804 Third Party AdvisoryVDB Entry
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC500/formexeCommand.md Broken Link
https://vuldb.com/?ctiid.261145 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/?id.261145 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.313804 Third Party AdvisoryVDB Entry

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Related vulnerabilities

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

9.8CVE-2024-32318Tenda ac500 firmware stack-based buffer overflow vulnerabilityTenda AC500 V2.0.1.9(1307) firmware has a stack overflow vulnerability via the vlan parameter in the formSetVlanInfo function.EPSS 0.78%9.8CVE-2024-3908Tenda ac500 firmware command injection vulnerabilityA vulnerability classified as critical has been found in Tenda AC500 2.0.1.9(1307). Affected is the function formWriteFacMac of the file /goform/Writ…EPSS 8.7%9.8CVE-2024-3907Tenda ac500 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC500 2.0.1.9(1307). It has been rated as critical. This issue affects the function formSetCfm of the file /goform…EPSS 1.9%9.8CVE-2023-25233Tenda ac500 firmware out-of-bounds write vulnerabilityTenda AC500 V2.0.1.9(1307) is vulnerable to Buffer Overflow in function fromRouteStatic via parameters entrys and mitInterface.EPSS 0.97%9.8CVE-2023-25234Tenda ac500 firmware out-of-bounds write vulnerabilityTenda AC500 V2.0.1.9(1307) is vulnerable to Buffer Overflow in function fromAddressNat via parameters entrys and mitInterface.EPSS 17%8.8CVE-2024-3910Tenda ac500 firmware stack-based buffer overflow vulnerabilityA vulnerability, which was classified as critical, has been found in Tenda AC500 2.0.1.9(1307). Affected by this issue is the function fromDhcpListCl…EPSS 1.7%8.8CVE-2024-3905Tenda ac500 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC500 2.0.1.9(1307). It has been classified as critical. This affects the function R7WebsSecurityHandler of the fi…EPSS 1.8%8.8CVE-2024-3906Tenda ac500 firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC500 2.0.1.9(1307). It has been declared as critical. This vulnerability affects the function formQuickIndex of t…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2024-3909), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.