← Vulnerability feed

Vulnerability record · CVE-2026-3809 · published 9 March 2026

CVE-2026-3809: Tenda fh1202 firmware memory buffer overflow vulnerability

Tenda · Fh1202 Firmware

A flaw has been found in Tenda FH1202 1.2.0.14(408). The impacted element is the function fromNatStaticSetting of the file /goform/NatSaticSetting. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may 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 flaw has been found in Tenda FH1202 1.2.0.14(408). The impacted element is the function fromNatStaticSetting of the file /goform/NatSaticSetting. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published 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/Svigo-o/Tenda_vul/tree/main/tenda-fh1202-natsaticsetting-page-buffer-overflow ExploitThird Party Advisory
https://vuldb.com/?ctiid.349775 Permissions RequiredVDB Entry
https://vuldb.com/?id.349775 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.769039 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product

Track CVE-2026-3809 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.8CVE-2024-30584Tenda fh1202 firmware classic buffer overflow vulnerabilityTenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the security parameter of the formWifiBasicSet function.EPSS 0.85%9.8CVE-2024-30587Tenda fh1202 firmware out-of-bounds read vulnerabilityTenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the urls parameter of the saveParentControlInfo function.EPSS 0.81%9.8CVE-2024-30589Tenda fh1202 firmware stack-based buffer overflow vulnerabilityTenda FH1202 v1.2.0.14(408) firmware has a stack overflow vulnerability in the entrys parameter of the fromAddressNat function.EPSS 0.73%9.8CVE-2024-30596Tenda fh1202 firmware out-of-bounds read vulnerabilityTenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the deviceId parameter of the formSetDeviceName function.EPSS 0.85%9.8CVE-2024-30593Tenda fh1202 firmware classic buffer overflow vulnerabilityTenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability located in the deviceName parameter of the formSetDeviceName function.EPSS 0.81%9.8CVE-2024-30595Tenda fh1202 firmware stack-based buffer overflow vulnerabilityTenda FH1202 v1.2.0.14(408) has a stack overflow vulnerability in the deviceId parameter of the addWifiMacFilter function.EPSS 0.81%9.8CVE-2023-38932Tenda f1202 firmware out-of-bounds write vulnerabilityTenda F1202 V1.2.0.9, PA202 V1.1.2.5, PW201A V1.1.2.5 and FH1202 V1.2.0.9 were discovered to contain a stack overflow via the page parameter in the S…EPSS 0.96%9.8CVE-2023-38938Tenda f1202 firmware out-of-bounds write vulnerabilityTenda F1202 V1.2.0.9, PA202 V1.1.2.5, PW201A V1.1.2.5 and FH1202 V1.2.0.9 were discovered to contain a stack overflow via the page parameter at /L7Im.EPSS 0.84%

Source: NIST National Vulnerability Database (record CVE-2026-3809), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.