NCPA

by Nagios Enterprises, LLCv3.4.1

Last updated Jun 8, 2026

An open-source cross-platform monitoring agent

Install with winget

$ winget install --id Nagios.NCPA --exact --version 3.4.1

Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.

Silent install command for NCPA

NCPA uses EXE (NSIS). The silent install switches are /S.

One-line silent install (x64, machine scope)

ncpa-3.4.1.exe /S

See the full silent install reference for NCPA →

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About

The Nagios Cross-Platform Agent (NCPA) is an open-source monitoring tool that delivers comprehensive monitoring for Windows, Linux, and Mac OS X. It offers active/passive checks, real-time metrics, and custom plugin support through an intuitive web interface.

Installers · v3.4.1

Architecture	Type	Scope	Install	Download
x64	EXE NSIS	machine		Direct

Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.

Security

2 known CVEs via NVD

medium4.8Patched in wingetCVE-2021-43584affects before 2.4.0Jan 24, 2024
DOM-based Cross Site Scripting (XSS vulnerability in 'Tail Event Logs' functionality in Nagios Nagios Cross-Platform Agent (NCPA) before 2.4.0 allows attackers to run arbitrary code via the name element when filtering for a log.
low3.5Patched in wingetCVE-2021-4285affects before 2.4.0Dec 27, 2022
A vulnerability classified as problematic was found in Nagios NCPA. This vulnerability affects unknown code of the file agent/listener/templates/tail.html. The manipulation of the argument name leads to cross site scripting. The attack can be initiated remotely. Upgrading to ver...
Patch

Source: NVD, updated 2h ago. Patch status is best-effort: NVD's fix version is compared against the latest version in winget, but the two version formats don't always align. Confirm with the vendor advisory before treating any specific build as safe.

See a CVE that affects your fleet? Push the patched version to Intune in one click with Pckgr.

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Frequently asked questions

How do I install NCPA on Windows?

Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id Nagios.NCPA --exact --version 3.4.1. winget downloads the installer from Nagios Enterprises, LLC and runs it. Requires Windows 10 (1809+) or Windows 11.

How do I install NCPA silently for unattended deployment?

Add --silent and accept the agreements upfront: winget install --id Nagios.NCPA --exact 3.4.1 --silent --accept-package-agreements --accept-source-agreements. This is the variant Intune, Configuration Manager, and other deployment tools should use.

What are the silent install switches for NCPA?

NCPA uses EXE (NSIS). Run the downloaded installer with: ncpa-3.4.1.exe /S. The silent switches are /S.

How do I uninstall NCPA via winget?

Run: winget uninstall --id Nagios.NCPA --exact. Add --silent for unattended uninstalls. winget will use the registered uninstaller from NCPA's Apps & Features entry.

Is NCPA free?

NCPA is distributed under Freeware. Refer to the publisher (https://www.nagios.org/projects/ncpa/) for the full license terms - Wingetly itself does not charge for installation.

Does NCPA work on Windows 10?

Yes, as long as your Windows 10 build supports winget (1809 or newer). winget ships with App Installer on Windows 10/11 and pulls NCPA directly from the publisher.

How do I keep NCPA up to date?

Run winget upgrade --id Nagios.NCPA --exact, or winget upgrade --all to update everything winget tracks. We index 10 versions of NCPA from microsoft/winget-pkgs.

Recent versions

3.4.1latest
3.4.0
3.3.1
3.3.0
3.2.3
3.2.2
3.2.1
3.2.0
3.1.4
3.1.3