CVE-2026-76955
Received Received - Intake

Buffer Overflow in Zyxel NWA110AX Firmware

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Zyxel Corporation

Description
A buffer overflow vulnerability in the zdp_wtp binary in Zyxel NWA110AX firmware versions through 7.12(ABTG.0)C0 could allow a LAN-based attacker to escalate privileges on an affected device.

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Meta Information

Published
2026-11-03
Last Modified
2026-11-03
Generated
2026-11-03
AI Q&A
2026-11-03
EPSS Evaluated
N/A
NVD
CVE-2026-76955

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Zyxel NWA110AX firmware <= 7.12(ABTG.0)C0

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Exploitability

CWE
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KEV
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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.

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Executive Summary

This is a buffer overflow vulnerability in the zdp_wtp binary of Zyxel NWA110AX firmware versions through 7.12(ABTG.0)C0. A LAN-based attacker could exploit it to escalate privileges on an affected device.

Impact Analysis

An attacker on the same local network could gain elevated access to your device, potentially allowing them to take control of it, install malware, or disrupt services.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards. However, if exploited, it could lead to unauthorized access or privilege escalation on network devices, potentially compromising data confidentiality and integrity. Such breaches may result in non-compliance with regulations requiring robust security controls.

Mitigation Strategies

Install the patches released by Zyxel for affected devices including NWA110AX, IAP500BE, WAC500H, and others. Check the Zyxel security advisory for model-specific firmware updates and hotfix availability.

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