CVE-2026-7287
Received Received - Intake
Buffer Overflow in Zyxel NWA1100-N Firmware

Publication date: 2026-05-12

Last updated on: 2026-05-12

Assigner: Zyxel Corporation

Description
** UNSUPPORTED WHEN ASSIGNED ** A buffer overflow vulnerability in the formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert() functions of the “webs” binary in Zyxel NWA1100-N customized firmware version 1.00(AACE.1)C0 could allow an attacker to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request to a vulnerable device.
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Meta Information
Published
2026-05-12
Last Modified
2026-05-12
Generated
2026-06-21
AI Q&A
2026-05-12
EPSS Evaluated
2026-06-20
NVD
CVE-2026-7287
EUVD
EUVD-2026-29378
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
zyxel nwa1100-n 1.00(aace.1)c0
Helpful Resources
Exploitability
CWE
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KEV
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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.
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Executive Summary

This vulnerability is a buffer overflow in several functions (formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert()) of the "webs" binary in Zyxel NWA1100-N customized firmware version 1.00(AACE.1)C0.

An attacker can exploit this by sending a specially crafted HTTP request to the vulnerable device.

The result of this exploitation could be a denial-of-service (DoS) condition, meaning the device could become unavailable or stop functioning properly.

Impact Analysis

The primary impact of this vulnerability is that an attacker can cause a denial-of-service (DoS) condition on the affected Zyxel NWA1100-N device.

This means the device could become unresponsive or stop working, potentially disrupting network connectivity or services relying on this device.

Mitigation Strategies

The vulnerability affects Zyxel NWA1100-N customized firmware version 1.00(AACE.1)C0 and allows denial-of-service (DoS) via crafted HTTP requests.

Since no specific mitigation steps or patches are mentioned in the provided resources, the best immediate action is to consider upgrading to a newer supported product or firmware version, as Zyxel advises migrating to newer solutions before end-of-life stages.

Additionally, restricting or monitoring HTTP traffic to the vulnerable device to detect or block suspicious crafted requests may help reduce exposure.

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