Vulnerability record · CVE-2026-3802 · published 9 March 2026

CVE-2026-3802: Tenda i3 firmware memory buffer overflow vulnerability

Tenda · I3 Firmware

A vulnerability was determined in Tenda i3 1.0.0.6(2204). Affected by this issue is the function formexeCommand of the file /goform/exeCommand. Executing a manipulation of the argument cmdinput can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

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

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.

I3 Firmware Tenda

References

Link	Tags
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-i3-formexeCommand-cmdinput-buffer-overflow	ExploitThird Party Advisory
https://vuldb.com/?ctiid.349769	Permissions RequiredVDB Entry
https://vuldb.com/?id.349769	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.768983	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-2026-3970Tenda i3 firmware memory buffer overflow vulnerabilityA flaw has been found in Tenda i3 1.0.0.6(2204). Affected is the function formwrlSSIDget of the file /goform/wifiSSIDget. Executing a manipulation of…EPSS 1.0%12 Mar 2026 7.4CVE-2026-3971Tenda i3 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Tenda i3 1.0.0.6(2204). Affected by this vulnerability is the function formwrlSSIDset of the file /goform/wifiSSIDs…EPSS 1.0%12 Mar 2026 7.4CVE-2026-3804Tenda i3 firmware memory buffer overflow vulnerabilityA security flaw has been discovered in Tenda i3 1.0.0.6(2204). This vulnerability affects the function formWifiMacFilterSet of the file /goform/WifiM…EPSS 1.0%9 Mar 2026 7.4CVE-2026-3803Tenda i3 firmware memory buffer overflow vulnerabilityA vulnerability was identified in Tenda i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. The ma…EPSS 1.0%9 Mar 2026 7.4CVE-2026-3801Tenda i3 firmware memory buffer overflow vulnerabilityA vulnerability was found in Tenda i3 1.0.0.6(2204). Affected by this vulnerability is the function formSetAutoPing of the file /goform/setAutoPing. …EPSS 1.0%9 Mar 2026 7.4CVE-2026-3799Tenda i3 firmware memory buffer overflow vulnerabilityA flaw has been found in Tenda i3 1.0.0.6(2204). This impacts the function formSetCfm of the file /goform/setcfm. This manipulation of the argument f…EPSS 1.0%9 Mar 2026 5.5CVE-2026-5841Tenda i3 firmware path traversal vulnerabilityA weakness has been identified in Tenda i3 1.0.0.6(2204). The affected element is the function R7WebsSecurityHandler of the component HTTP Handler. E…EPSS 0.78%9 Apr 2026 8.8CVE-2026-8452Citrix NetScaler ADC and Gateway memory buffer overflow causes DoSCVE-2026-8452 is a memory buffer overflow (CWE-119) in Citrix NetScaler ADC and NetScaler Gateway that leads to unpredictable or erroneous behavior a…KEVEPSS 1.0%analysed30 Jun 2026

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