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Vulnerability record · CVE-2025-7747 · published 17 July 2025

CVE-2025-7747: Tenda fh451 firmware memory buffer overflow vulnerability

Tenda · Fh451 Firmware

A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. This affects the function fromWizardHandle of the file /goform/WizardHandle of the component POST Request Handler. The manipulation of the argument PPW leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

7.4 CVSS 4.0 High EPSS 0.94% · top 40.1% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
0.94%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 3 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. This affects the function fromWizardHandle of the file /goform/WizardHandle of the component POST Request Handler. The manipulation of the argument PPW leads to buffer overflow. It is possible to initiate the attack 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:P/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

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

References

LinkTags
https://github.com/zezhifu1/cve_report/blob/main/FH451/fromWizardHandle.md ExploitThird Party Advisory
https://github.com/zezhifu1/cve_report/blob/main/FH451/fromWizardHandle.md#payload ExploitThird Party Advisory
https://vuldb.com/?ctiid.316737 Permissions RequiredVDB Entry
https://vuldb.com/?id.316737 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.615487 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product
https://github.com/zezhifu1/cve_report/blob/main/FH451/fromWizardHandle.md ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2025-45513Tenda fh451 firmware stack-based buffer overflow vulnerabilityTenda FH451 V1.0.0.9 has a stack overflow vulnerability in the function.P2pListFilter.EPSS 0.56%9.8CVE-2024-46048Tenda fh451 firmware command injection vulnerabilityTenda FH451 v1.0.0.9 has a command injection vulnerability in the formexeCommand function iEPSS 11%9.8CVE-2024-46046Tenda fh451 firmware out-of-bounds write vulnerabilityTenda FH451 v1.0.0.9 has a stack overflow vulnerability located in the RouteStatic function.EPSS 0.60%8.7CVE-2025-7855Tenda fh451 firmware memory buffer overflow vulnerabilityA vulnerability classified as critical was found in Tenda FH451 1.0.0.9. Affected by this vulnerability is the function fromqossetting of the file /g…EPSS 1.2%8.7CVE-2025-5080Tenda fh451 firmware memory buffer overflow vulnerabilityA vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. Affected is the function webExcptypemanFilter of the file /goform/webEx…EPSS 1.0%7.5CVE-2024-46047Tenda fh451 firmware out-of-bounds write vulnerabilityTenda FH451 v1.0.0.9 has a stack overflow vulnerability in the fromDhcpListClient function.EPSS 0.61%7.4CVE-2026-4534Tenda fh451 firmware memory buffer overflow vulnerabilityA flaw has been found in Tenda FH451 1.0.0.9. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. This manipulation of the arg…EPSS 1.0%7.4CVE-2026-4535Tenda fh451 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Tenda FH451 1.0.0.9. This vulnerability affects the function WrlclientSet of the file /goform/WrlclientSet. Such ma…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2025-7747), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.