---
title: "CVE-2026-76955: Zyxel NWA110AX - Privilege Escalation"
description: "Zyxel NWA110AX firmware <= 7.12(ABTG.0)C0 contains a buffer overflow caused by improper handling in the zdp_wtp binary, letting LAN-based attackers escalate privileges, exploit requires LAN access."
url: https://panop.io/threat-heartbeat/CVE-2026-76955/
---

# CVE-2026-76955 Zyxel NWA110AX - Privilege Escalation

Zyxel NWA110AX firmware <= 7.12(ABTG.0)C0 contains a buffer overflow caused by improper handling in the zdp\_wtp binary, letting LAN-based attackers escalate privileges, exploit requires LAN access.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-76955)

## Details

Type

Privilege Escalation

Impact

Privilege Escalation

CVSS vector

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

Published

3 November 2026

Updated

3 November 2026

Weakness

[CWE-120](https://cwe.mitre.org/data/definitions/120.html)

## Vendor fix

Update to the latest firmware version beyond 7.12(ABTG.0)C0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-76955](https://nvd.nist.gov/vuln/detail/CVE-2026-76955)
- [https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerability-in-certain-aps-fwa7-and-security-routers-11-03-2026](https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerability-in-certain-aps-fwa7-and-security-routers-11-03-2026)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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