CVE-2026-5684
Received Received - Intake

Stack-Based Buffer Overflow in Tenda CX12L Web Filter

Vulnerability report for CVE-2026-5684, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-04-06

Last updated on: 2026-04-30

Assigner: VulDB

Description

A vulnerability was determined in Tenda CX12L 16.03.53.12. Affected by this issue is the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter. Executing a manipulation of the argument page can lead to stack-based buffer overflow. The attack requires access to the local network. The exploit has been publicly disclosed and may be utilized.

CVSS Scores

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Meta Information

Published
2026-04-06
Last Modified
2026-04-30
Generated
2026-07-06
AI Q&A
2026-04-07
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
tenda cx12l_firmware 16.03.53.12

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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).
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.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the Tenda CX12L device, specifically in the function fromwebExcptypemanFilter located in the file /goform/webExcptypemanFilter. It involves a stack-based buffer overflow that can be triggered by manipulating the argument 'page'.

An attacker must have access to the local network to exploit this vulnerability. The exploit has been publicly disclosed, meaning details on how to carry out the attack are available.

Impact Analysis

Exploiting this vulnerability can lead to a stack-based buffer overflow, which may allow an attacker to execute arbitrary code or cause a denial of service on the affected device.

Since the attack requires local network access, an attacker within the same network could potentially compromise the device, leading to loss of confidentiality, integrity, and availability.

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