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Vulnerability record · CVE-2026-3677 · published 7 March 2026

CVE-2026-3677: Tenda fh451 firmware memory buffer overflow vulnerability

Tenda · Fh451 Firmware

A vulnerability was found in Tenda FH451 1.0.0.9. This impacts the function fromSetCfm of the file /goform/setcfm. The manipulation of the argument funcname/funcpara1 results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

7.4 CVSS 4.0 High EPSS 1.0% · top 38.4% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in Tenda FH451 1.0.0.9. This impacts the function fromSetCfm of the file /goform/setcfm. The manipulation of the argument funcname/funcpara1 results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could 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/Litengzheng/vul_db/blob/main/FH451/vul_61/README.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.349579 Permissions RequiredVDB Entry
https://vuldb.com/?id.349579 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.765329 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-2025-45513Tenda fh451 firmware stack-based buffer overflow vulnerabilityTenda FH451 V1.0.0.9 has a stack overflow vulnerability in the function.P2pListFilter.EPSS 0.53%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%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%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 1.1%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-2026-3677), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.