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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-05-12
Last Modified
2026-05-12
Generated
2026-07-11
AI Q&A
2026-05-12
EPSS Evaluated
2026-07-10
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
CWE Icon
KEV
KEV Icon
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
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.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-7287. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart