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Zyxel NWA1100-N Is Unsupported and Contains a Buffer Overflow in Its Web Functions That Can Be Triggered Remotely to Cause Denial of Service

Last refreshed2026-09-29

Status: UPDATED  |  Advisory ID: CVE-2026-7287

Key Details

CVECVE-2026-7287
CVSS Score / Version7.5 (High) / CVSS v3.1
Updated2026-06-17
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Affected productsZyxel nwa1100-n_firmware
Classified asCWE-120 (Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'))

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Zyxelnwa1100-n_firmware
SubsystemsGeneral OT
SectorsMultiple

What to Know

** 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.

What to Do

Monitor Zyxel's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-7287
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-7287