CVE-2026-7287

Buffer Overflow in Zyxel NWA1100‑N Web Administration Causes Denial of Service

Published May 12, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Zyxel nwa1100-n
CPEs cpe:2.3:h:zyxel:nwa1100-n:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nwa1100-n_firmware:1.00\(aace.1\)c0:*:*:*:*:*:*:*
Vendors & Products Zyxel nwa1100-n
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Zyxel
Zyxel nwa1100-n Firmware
Vendors & Products Zyxel
Zyxel nwa1100-n Firmware
Type Values Removed Values Added
Title Buffer Overflow in Zyxel NWA1100‑N Web Administration Causes Denial of Service
Type Values Removed Values Added
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.
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Zyxel
Published
Updated
May 12, 2026, 12:47 PM
Reserved
Apr 28, 2026, 9:40 AM
Status
Analyzed
Published
May 12, 2026, 4:16 AM
Modified
Oct 26, 2026, 6:10 PM