High severity · published Mar 9, 2026
CVE-2026-3809
Tenda FH1202 NatSaticSetting fromNatStaticSetting stack-based overflow
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
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 attack may be launched remotely. The exploit has been published and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FH
FH1202 · Tenda
1.2.0.14(408) · source: vendor
FF
Fh1202 Firmware · Tenda
1.2.0.14(408) · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3809
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3809
Exploit
https://github.com/Svigo-o/Tenda_vul/tree/main/tenda-fh1202-natsaticsetting-page-buffer-overflow
Permissions Required
https://vuldb.com/?ctiid.349775
Third Party Advisory
https://vuldb.com/?id.349775
Third Party Advisory
https://vuldb.com/?submit.769039
Product
https://www.tenda.com.cn/
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