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Vulnerability record · CVE-2024-4236 · published 26 April 2024

CVE-2024-4236: Tenda ax1803 firmware stack-based buffer overflow vulnerability

Tenda · Ax1803 Firmware

A vulnerability, which was classified as critical, has been found in Tenda AX1803 1.0.0.1. This issue affects the function formSetSysToolDDNS of the file /goform/SetDDNSCfg. The manipulation of the argument serverName/ddnsUser/ddnsPwd/ddnsDomain leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-262127. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

8.8 CVSS 3.1 High EPSS 15% · top 3.4% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 9.0
15%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, which was classified as critical, has been found in Tenda AX1803 1.0.0.1. This issue affects the function formSetSysToolDDNS of the file /goform/SetDDNSCfg. The manipulation of the argument serverName/ddnsUser/ddnsPwd/ddnsDomain leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-262127. 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/AX/AX1803/formSetSysToolDDNS.md Broken Link
https://vuldb.com/?ctiid.262127 Permissions RequiredVDB Entry
https://vuldb.com/?id.262127 Permissions RequiredVDB Entry
https://vuldb.com/?submit.319230 Third Party AdvisoryVDB Entry
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AX/AX1803/formSetSysToolDDNS.md Broken Link
https://vuldb.com/?ctiid.262127 Permissions RequiredVDB Entry
https://vuldb.com/?id.262127 Permissions RequiredVDB Entry
https://vuldb.com/?submit.319230 Third Party AdvisoryVDB Entry

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Related vulnerabilities

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

9.8CVE-2024-30620Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the serviceName parameter in the function fromAdvSetMacMtuWan.EPSS 0.82%9.8CVE-2024-30621Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the serverName parameter in the function fromAdvSetMacMtuWan.EPSS 0.74%9.8CVE-2023-51962Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function setIptvInfo.EPSS 0.73%9.8CVE-2023-51967Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.port parameter in the function getIptvInfo.EPSS 0.73%9.8CVE-2023-51968Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the adv.iptv.stballvlans parameter in the function getIptvInfo.EPSS 0.73%9.8CVE-2023-51969Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.city.vlan parameter in the function getIptvInfo.EPSS 0.73%9.8CVE-2023-51970Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function formSetIptv.EPSS 0.73%9.8CVE-2023-51953Tenda ax1803 firmware out-of-bounds write vulnerabilityTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function formSetIptv.EPSS 0.70%

Source: NIST National Vulnerability Database (record CVE-2024-4236), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.