Vulnerability record · CVE-2026-3679 · published 7 March 2026

CVE-2026-3679: Tenda f451 firmware memory buffer overflow vulnerability

Tenda · F451 Firmware

A vulnerability was identified in Tenda FH451 1.0.0.9. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex. Such manipulation of the argument mit_linktype/PPPOEPassword leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.

7.4 CVSS 4.0 High EPSS 0.98% · top 39.3% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow

7.4CVSS 4.0 base score, v2 9.0

0.98%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

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.

F451 Firmware Tenda

References

Link	Tags
https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_63/README.md	ExploitIssue Tracking
https://vuldb.com/?ctiid.349581	Permissions RequiredVDB Entry
https://vuldb.com/?id.349581	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.765331	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.

7.4CVE-2026-6136Tenda f451 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in Tenda F451 1.0.0.7_cn_svn7958. Impacted is the function frmL7ImForm of the file /goform/L7Im. The manip…EPSS 0.95%13 Apr 2026 7.4CVE-2026-6137Tenda f451 firmware memory buffer overflow vulnerabilityA vulnerability was detected in Tenda F451 1.0.0.7_cn_svn7958. The affected element is the function fromAdvSetWan of the file /goform/AdvSetWan. The …EPSS 0.95%13 Apr 2026 7.4CVE-2026-6135Tenda f451 firmware memory buffer overflow vulnerabilityA weakness has been identified in Tenda F451 1.0.0.7_cn_svn7958. This issue affects the function fromSetIpBind of the file /goform/SetIpBind. Executi…EPSS 0.95%13 Apr 2026 7.4CVE-2026-6133Tenda f451 firmware memory buffer overflow vulnerabilityA vulnerability was identified in Tenda F451 1.0.0.7_cn_svn7958. This affects the function fromSafeUrlFilter of the file /goform/SafeUrlFilter. Such …EPSS 0.95%12 Apr 2026 7.4CVE-2026-6134Tenda f451 firmware memory buffer overflow vulnerabilityA security flaw has been discovered in Tenda F451 1.0.0.7_cn_svn7958. This vulnerability affects the function fromqossetting of the file /goform/qoss…EPSS 0.95%12 Apr 2026 7.4CVE-2026-6124Tenda f451 firmware memory buffer overflow vulnerabilityA vulnerability was determined in Tenda F451 1.0.0.7. This vulnerability affects the function fromSafeMacFilter of the file /goform/SafeMacFilter of …EPSS 0.95%12 Apr 2026 7.4CVE-2026-6123Tenda f451 firmware memory buffer overflow vulnerabilityA vulnerability was found in Tenda F451 1.0.0.7. This affects the function fromAddressNat of the file /goform/addressNat of the component httpd. Perf…EPSS 0.96%12 Apr 2026 7.4CVE-2026-6122Tenda f451 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Tenda F451 1.0.0.7. Affected by this issue is the function frmL7ProtForm of the file /goform/L7Prot of the componen…EPSS 0.95%12 Apr 2026

Source: NIST National Vulnerability Database (record CVE-2026-3679), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.