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TI-2026-03436 Aliases CVE-2026-3972GHSA-j4r5-rc95-5xpf

Tenda W3 HTTP setcfm formSetCfm stack-based overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
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 found in Tenda W3 1.0.0.3(2204). Affected by this issue is the function formSetCfm of the file /goform/setcfm of the component HTTP Handler. The manipulation of the argument funcpara1 results in stack-based buffer overflow. The attack can only be performed from the local network. The exploit has been made public and could be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00771 55th 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-2026-3972
  2. 2026-10-03 Alias added: GHSA-j4r5-rc95-5xpf

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-2026-03438 Tenda W3 HTTP exeCommand formexeCommand 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

Sources

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