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Vulnerability record · CVE-2025-3802 · published 19 April 2025

CVE-2025-3802: Tenda w12 firmware memory buffer overflow vulnerability

Tenda · W12 Firmware

A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). It has been declared as critical. This vulnerability affects the function cgiPingSet of the file /bin/httpd. The manipulation of the argument pingIP leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

8.7 CVSS 4.0 High EPSS 1.1% · top 36.5% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
8.7CVSS 4.0 base score, v2 9.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). It has been declared as critical. This vulnerability affects the function cgiPingSet of the file /bin/httpd. The manipulation of the argument pingIP leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://github.com/02Tn/vul/issues/2 ExploitIssue TrackingThird Party Advisory
https://vuldb.com/?ctiid.305656 Permissions RequiredVDB Entry
https://vuldb.com/?id.305656 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.554746 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product

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Related vulnerabilities

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

9.8CVE-2024-57483Tenda i24 firmware classic buffer overflow vulnerabilityTenda i24 V2.0.0.5 is vulnerable to Buffer Overflow in the addWifiMacFilter function.EPSS 0.45%8.7CVE-2025-4007Tenda w12 firmware memory buffer overflow vulnerabilityA vulnerability classified as critical was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). Affected by this vulnerability is the function cgi…EPSS 1.0%8.7CVE-2025-3820Tenda w12 firmware memory buffer overflow vulnerabilityA vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this issue is the function cgiSysU…EPSS 13%8.7CVE-2025-3803Tenda w12 firmware memory buffer overflow vulnerabilityA vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644). It has been rated as critical. This issue affects the function cgiSysSche…EPSS 1.0%8.7CVE-2025-3693Tenda w12 firmware memory buffer overflow vulnerabilityA vulnerability was found in Tenda W12 3.0.0.5. It has been rated as critical. Affected by this issue is the function cgiWifiRadioSet of the file /bi…EPSS 7.4%8.4CVE-2025-70798Tenda i24 firmware hard-coded password vulnerabilityTenda i24V3.0si V3.0.0.5 Firmware V3.0.0.5 was discovered to contain a hardcoded password vulnerability in /etc_ro/shadow, which allows attackers to …EPSS 0.18%7.4CVE-2025-11549Tenda w12 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Tenda W12 3.0.0.6(3948). The affected element is the function wifiMacFilterSet of the file /goform/modules of the c…EPSS 8.5%5.7CVE-2025-11550Tenda w12 firmware improper resource shutdown vulnerabilityA vulnerability was found in Tenda W12 3.0.0.6(3948). The impacted element is the function wifiScheduledSet of the file /goform/modules of the compon…EPSS 0.96%

Source: NIST National Vulnerability Database (record CVE-2025-3802), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.