CVE-2026-19961

Received Received - Intake

Buffer Overflow in Edimax EW-7478APC Firmware

Publication date: 2026-08-16

Last updated on: 2026-08-16

Assigner: VulDB

Description

A vulnerability was detected in Edimax EW-7478APC 1.04. Affected is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey. Performing a manipulation of the argument selSSID results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-16

Last Modified

2026-08-16

Generated

2026-08-17

AI Q&A

2026-08-17

EPSS Evaluated

N/A

NVD

CVE-2026-19961

EUVD

EUVD-2026-60002

Affected Vendors & Products

Vendor	Product	Version / Range
edimax	ew-7478apc	1.04

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
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.
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

Executive Summary

This vulnerability is a buffer overflow issue in the Edimax EW-7478APC device version 1.04. It exists in the function formWlSiteSurvey within the file /goform/formWlSiteSurvey. An attacker can exploit this by manipulating the selSSID argument, leading to a buffer overflow. The attack can be executed remotely and the exploit is publicly available.

Detection Guidance

This vulnerability involves a buffer overflow in Edimax EW-7478APC via the formWlSiteSurvey function when manipulating the selSSID argument. Detection requires checking for affected firmware versions (1.04) and monitoring network traffic for malformed requests targeting the /goform/formWlSiteSurvey endpoint. No specific commands are provided in the context.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary code or cause a denial of service by overflowing the buffer. It may lead to unauthorized access, data breaches, or device compromise. Since the exploit is public, the risk of attack is higher.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate GDPR (data protection) and HIPAA (health data security) requirements. Organizations using this device must address it to maintain compliance.

Mitigation Strategies

Immediately update the Edimax EW-7478APC firmware to the latest version if available. If no update is available, consider isolating the device from your network or disabling the affected function formWlSiteSurvey. Monitor network traffic for unusual activity targeting the device.

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