Viscosity

by SparkLabs Pty Ltdv1.12.1.1857

Last updated Jun 8, 2026

A first class OpenVPN client that lets you secure your network with ease & style.

Install with winget

$ winget install --id SparkLabs.Viscosity --exact --version 1.12.1.1857

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

Silent install command for Viscosity

Viscosity uses EXE (Inno Setup). The silent install switches are /SP- /VERYSILENT /SUPPRESSMSGBOXES /NORESTART.

One-line silent install (x64, machine scope)

Viscosity%20Installer%201.12.1.exe /SP- /VERYSILENT /SUPPRESSMSGBOXES /NORESTART

See the full silent install reference for Viscosity →

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Installers · v1.12.1.1857

Architecture	Type	Scope	Install	Download
x64	EXE Inno Setup	machine		Direct
arm64	EXE Inno Setup	machine		Direct

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

Security

1 known CVE via NVD

high7.8Patched in wingetCVE-2020-5180affects v1.8.2Jan 14, 2020
Viscosity 1.8.2 on Windows and macOS allows an unprivileged user to set a subset of OpenVPN parameters, which can be used to load a malicious library into the memory of the OpenVPN process, leading to limited local privilege escalation. (When a VPN connection is initiated using...
Vendor advisory

Source: NVD, updated 1h 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 Viscosity on Windows?

Open Windows Terminal, PowerShell, or Command Prompt and run: winget install --id SparkLabs.Viscosity --exact --version 1.12.1.1857. winget downloads the installer from SparkLabs Pty Ltd and runs it. Requires Windows 10 (1809+) or Windows 11.

How do I install Viscosity silently for unattended deployment?

Add --silent and accept the agreements upfront: winget install --id SparkLabs.Viscosity --exact 1.12.1.1857 --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 Viscosity?

Viscosity uses EXE (Inno Setup). Run the downloaded installer with: Viscosity%20Installer%201.12.1.exe /SP- /VERYSILENT /SUPPRESSMSGBOXES /NORESTART. The silent switches are /SP- /VERYSILENT /SUPPRESSMSGBOXES /NORESTART.

How do I uninstall Viscosity via winget?

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

Is Viscosity free?

Viscosity is distributed under Proprietary. Refer to the publisher (https://sparklabs.com/viscosity/) for the full license terms - Wingetly itself does not charge for installation.

Does Viscosity 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 Viscosity directly from the publisher.

How do I keep Viscosity up to date?

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

Recent versions

1.12.1.1857latest
1.12.0.1855
1.11.5.1842
1.11.4.1835
1.11.3.1828
1.11.2.1820
1.11.1.1814
1.11.0.1806
1.10.6.1790
1.10.5.1775