CVE-2026-13583
Received Received - Intake

Buffer Overflow in Edimax EW-7478APC Firmware

Vulnerability report for CVE-2026-13583, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-06-29

Last updated on: 2026-06-29

Assigner: VulDB

Description

A vulnerability has been found in Edimax EW-7478APC 1.04. Impacted is the function formUSBFolder of the file /goform/formUSBFolder of the component POST Request Handler. Such manipulation of the argument ShareName/SelectName leads to buffer overflow. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-06-29
Last Modified
2026-06-29
Generated
2026-06-29
AI Q&A
2026-06-29
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
edimax ew-7478apc 1.04

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 EW-7478APC device, specifically in the function formUSBFolder within the POST Request Handler component. It involves manipulation of the arguments ShareName or SelectName, which leads to a buffer overflow condition. This buffer overflow can be triggered remotely, meaning an attacker can exploit it over a network.

The vulnerability has been publicly disclosed, and an exploit is available. The vendor was informed but did not respond.

Impact Analysis

The vulnerability has a high severity score (CVSS v3.1 base score of 8.8), indicating it can have serious impacts. Successful exploitation can lead to complete compromise of confidentiality, integrity, and availability of the affected device.

  • Confidentiality impact: High - sensitive information could be exposed.
  • Integrity impact: High - data or system integrity could be altered or corrupted.
  • Availability impact: High - the device or service could be disrupted or made unavailable.

Because the attack can be performed remotely with low attack complexity and no user interaction, it poses a significant risk to affected systems.

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EPSS Chart