CVE-2026-7684
Deferred Deferred - Pending Action

Buffer Overflow in Edimax BR-6428nC Firmware

Vulnerability report for CVE-2026-7684, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-05-03

Last updated on: 2026-05-05

Assigner: VulDB

Description

A security vulnerability has been detected in Edimax BR-6428nC up to 1.16. This impacts an unknown function of the file /goform/setWAN. Such manipulation of the argument pptpDfGateway  leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

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Meta Information

Published
2026-05-03
Last Modified
2026-05-05
Generated
2026-07-06
AI Q&A
2026-05-03
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
edimax br-6428nc to 1.16 (inc)

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-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the Edimax BR-6428nC device up to version 1.16. It involves a buffer overflow caused by manipulation of the argument pptpDfGateway in the /goform/setWAN file. This flaw can be exploited remotely, meaning an attacker does not need physical access to the device to launch an attack.

Impact Analysis

Exploitation of this vulnerability can lead to a buffer overflow, which may allow an attacker to execute arbitrary code or cause a denial of service on the affected device. Since the attack can be launched remotely, it poses a significant risk to the security and availability of the device and potentially the network it is connected to.

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