CVE-2026-3809

HIGH
2026-03-09 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:56 vuln.today
PoC Detected
Mar 09, 2026 - 15:30 vuln.today
Public exploit code
CVE Published
Mar 09, 2026 - 08:16 nvd
HIGH 8.8

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.

Analysis

Stack-based buffer overflow in Tenda FH1202 firmware version 1.2.0.14(408) allows remote authenticated attackers to achieve complete system compromise through manipulation of the page parameter in the /goform/NatStaticSetting function. Public exploit code exists for this vulnerability and no patch is currently available. …

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Remediation

Within 24 hours: Inventory all Tenda FH1202 devices running firmware 1.2.0.14(408) and isolate affected units from production networks if possible. Within 7 days: Implement network segmentation to restrict access to the vulnerable /goform/NatStaticSetting endpoint and apply WAF rules to block exploitation attempts. …

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-3809 vulnerability details – vuln.today

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