CVE-2026-7287

HIGH

Zyxel NWA1100-N Firmware - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Title source: rule

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.

References (1)

Core 1

Core References

https://www.zyxel.com/global/en/support/end-of-life

Scores

CVSS v3 7.5

EPSS 0.0034

EPSS Percentile 56.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-120

Status published

Products (2)

Zyxel/NWA1100-N firmware 1.00(AACE.1)C0

zyxel/nwa1100-n_firmware 1.00\(aace.1\)c0

Published May 12, 2026

Tracked Since May 12, 2026