Buffer overflow in Tenda Fh1202
CVE-2026-3809
A flaw has been found in Tenda FH1202 1.2.0.14(408). The impacted element is the function fromNatStaticSetting of the file /goform/NatSaticSetting. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The…
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 Fh1202 — versions 1.2.0.14(408)
Weakness classification (CWE)
References
- VDB-349775 | Tenda FH1202 NatSaticSetting fromNatStaticSetting stack-based overflow (vdb-entry, technical-description)
- VDB-349775 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #769039 | Tenda FH1202 V1.2.0.14(408) Buffer Overflow (third-party-advisory)
- github.com/Svigo-o/Tenda_vul/tree/main/tenda-fh1202-natsaticsetting-page-buffer… (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-3809?
- CVE-2026-3809 is a high-severity vulnerability in Tenda Fh1202, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-09.
- How severe is CVE-2026-3809?
- High severity. CVSS v3 base score is 8.8 out of 10.