CVE-2026-3679
Received Received - Intake
Stack-Based Buffer Overflow in Tenda FH451 Remote Exploit

Publication date: 2026-03-07

Last updated on: 2026-03-09

Assigner: VulDB

Description
A vulnerability was identified in Tenda FH451 1.0.0.9. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex. Such manipulation of the argument mit_linktype/PPPOEPassword leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
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Meta Information
Published
2026-03-07
Last Modified
2026-03-09
Generated
2026-06-16
AI Q&A
2026-03-08
EPSS Evaluated
2026-06-14
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
tenda f451_firmware 1.0.0.9
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Executive Summary

This vulnerability exists in the Tenda FH451 version 1.0.0.9, specifically in the function formQuickIndex within the file /goform/QuickIndex. It involves manipulation of the argument mit_linktype/PPPOEPassword, which leads to a stack-based buffer overflow. This type of vulnerability allows an attacker to overwrite parts of the memory stack, potentially enabling arbitrary code execution.

The attack can be launched remotely, meaning an attacker does not need physical access to the device to exploit it. Additionally, a public exploit is available, increasing the risk of exploitation.

Impact Analysis

Exploitation of this vulnerability can lead to severe impacts including unauthorized remote code execution, which may allow attackers to take control of the affected device.

  • Compromise of device integrity and availability.
  • Potential unauthorized access to network resources connected to the device.
  • Disruption of services relying on the affected device.
Compliance Impact

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Detection Guidance

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Mitigation Strategies

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