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TI-2026-03438 Aliases CVE-2026-3974GHSA-45rr-9399-9pp6

Tenda W3 HTTP exeCommand formexeCommand stack-based overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A vulnerability was identified in Tenda W3 1.0.0.3(2204). This vulnerability affects the function formexeCommand of the file /goform/exeCommand of the component HTTP Handler. Such manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack may be performed from remote. The exploit is publicly available and might be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00719 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TendaW31.0.0.3(2204)—No fix listedCNA
  • W3 VendorTenda Affected 1.0.0.3(2204) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:w3_firmware:1.0.0.3\(2204\):*:*:*:*:*:*:*1.0.0.3(2204)VulnerableTenda
cpe:2.3:h:tenda:w3:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:w3_firmware:1.0.0.3\(2204\):*:*:*:*:*:*:* Versions 1.0.0.3(2204) Vulnerable ·Tenda
  • cpe:2.3:h:tenda:w3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3974
  2. 2026-10-03 Alias added: GHSA-45rr-9399-9pp6

References

Exploit 1

Other 1

  • TI-2026-03471 Tenda W3 POST Parameter wifiSSIDset stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03470 Tenda W3 POST Parameter wifiSSIDget stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03440 Tenda W3 POST Parameter WifiMacFilterSet formWifiMacFilterSet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03439 Tenda W3 POST Parameter WifiMacFilterGet formWifiMacFilterGet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03437 Tenda W3 POST Parameter setAutoPing formSetAutoPing stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03436 Tenda W3 HTTP setcfm formSetCfm stack-based overflow CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences