Buffer overflow in Tenda I12
CVE-2026-4043
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 a…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (28.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R.
Affected products
- Tenda I12 — versions 1.0.0.6(2204)
Weakness classification (CWE)
References
- VDB-350655 | Tenda i12 wifiSSIDget formwrlSSIDget stack-based overflow (vdb-entry, technical-description)
- VDB-350655 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #769464 | Tenda i12 V1.0.0.6(2204) Buffer Overflow (third-party-advisory)
- github.com/Jimi-Lab/cve/issues/3 (exploit, issue-tracking)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-4043?
- CVE-2026-4043 is a high-severity vulnerability in Tenda I12, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-12.
- How severe is CVE-2026-4043?
- High severity. CVSS v3 base score is 8.8 out of 10.