Buffer Overflow Vulnerability in Zyxel NWA1100-N Customized Firmware
CVE-2026-7287

7.5HIGH

Key Information:

Vendor

Zyxel
Status
Nwa1100-n Firmware
Vendor
CVE Published:
12 May 2026

What is CVE-2026-7287?

A buffer overflow vulnerability exists in the functions formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert() within the 'webs' binary of the Zyxel NWA1100-N customized firmware version 1.00(AACE.1)C0. This vulnerability allows an attacker to exploit the device by sending specifically crafted HTTP requests, potentially leading to a denial-of-service (DoS) condition, thus impairing device availability and functionality.

Affected Version(s)

NWA1100-N firmware 1.00(AACE.1)C0

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.