Tenda i12 wifiSSIDget formwrlSSIDget 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 security vulnerability has been detected in Tenda i12 1.0.0.6(2204). The impacted element is the function formwrlSSIDget of the file /goform/wifiSSIDget. Such manipulation of the argument index leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may 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 | i12 | 1.0.0.6(2204) | — | No fix listed | CNA |
- i12 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-2026-4043
- 2026-10-03 Alias added: GHSA-qv82-jp4p-v9c2
- 2026-10-25 EPSS moved to the below the 50th percentile
- 2026-11-07 EPSS moved to the 50th–90th percentile
References
More Tenda I12 Firmware vulnerabilities
- TI-2026-04917 Tenda i12 Parameter wifiSSIDset formwrlSSIDset stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03501 Tenda i12 WifiMacFilterGet formWifiMacFilterGet stack-based overflow CVSS 4.0HIGH 8.7
- TI-2026-03500 Tenda i12 exeCommand vos_strcpy stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-20998 Tenda i12 V1.0.0.10(3805) was discovered to contain a buffer overflow via the ping1… CVSS 3.1HIGH 7.5
- TI-2026-05128 Tenda i12 HTTP path traversal CVSS 4.0MEDIUM 6.9
- TI-2025-19090 Tenda i12 V1.0.0.10(3805) was discovered to contain a buffer overflow via the funcpara1… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-4043 · CVE Program
- CVE-2026-4043 · NVD
- FIRST EPSS
- GHSA-qv82-jp4p-v9c2 · GitHub Advisory Database · CC BY 4.0
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