Tenda i3 WifiMacFilterGet formWifiMacFilterGet stack-based overflow
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 i3 1.0.0.6(2204). This affects the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. The manipulation of the argument index leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | i3 | 1.0.0.6(2204) | — | No fix listed | CNA |
- i3 VendorTenda Affected 1.0.0.6(2204) Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3803
- 2026-10-03 Alias added: GHSA-9r9x-93jv-xc8p
References
More Tenda I3 Firmware vulnerabilities
- TI-2026-03435 Tenda i3 wifiSSIDset formwrlSSIDset stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03434 Tenda i3 wifiSSIDget formwrlSSIDget stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03293 Tenda i3 WifiMacFilterSet formWifiMacFilterSet stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03291 Tenda i3 exeCommand formexeCommand stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03290 Tenda i3 setAutoPing formSetAutoPing stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03288 Tenda i3 setcfm formSetCfm stack-based overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2026-3803 · CVE Program
- CVE-2026-3803 · NVD
- FIRST EPSS
- GHSA-9r9x-93jv-xc8p · GitHub Advisory Database · CC BY 4.0
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