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What is Wireshark?

Wireshark is the world’s most popular network protocol analyzer. It is used for troubleshooting, analysis, development and education.

What’s New

We do not ship official 32-bit Windows packages for Wireshark 4.0 and later. If you need to use Wireshark on that platform, we recommend using the latest 3.6 release. Issue 17779

If you’re running Wireshark on macOS and upgraded to macOS 13 from an earlier version, you might have to open and run the “Uninstall ChmodBPF” package, then open and run “Install ChmodBPF” in order to reset the ChmodBPF Launch Daemon. Issue 18734.

Bug Fixes

The following vulnerabilities have been fixed:

The following bugs have been fixed:

  • Capture filters not saved to recently used list. Issue 12918.

  • OSS-Fuzz 64290: wireshark:fuzzshark_ip: Global-buffer-overflow in dissect_zcl_read_attr_struct. Issue 19490.

  • Segfault when enabling monitor mode on wireless card that falsely claims to support it. Issue 16693.

  • Selection highlight lost when interface list is sorted. Issue 19133.

  • Capture filter compilation fails with obscure error message. Issue 19480.

  • GigE-vision: Control Protocol shows \"unknown\" as value for ASCII character set. Issue 19494.

  • NFLOG timestamp is incorrect. Issue 19525.

  • Qt6 Crash (Double Free) When Attempting to Save TCP Stream Graph. Issue 19529.

New and Updated Features

There are no new or updated features in this release.

New Protocol Support

There are no new protocols in this release.

Updated Protocol Support

New and Updated Capture File Support

There is no new or updated capture file support in this release.

pcapng: the if_tsoffset option is now supported.

New File Format Decoding Support

There is no new or updated file format support in this release.

Prior Versions

This document only describes the changes introduced in Wireshark 4.0.12. You can find release notes for prior versions at the following locations:

Getting Wireshark

Wireshark source code and installation packages are available from

Vendor-supplied Packages

Most Linux and Unix vendors supply their own Wireshark packages. You can usually install or upgrade Wireshark using the package management system specific to that platform. A list of third-party packages can be found on the download page on the Wireshark web site.

File Locations

Wireshark and TShark look in several different locations for preference files, plugins, SNMP MIBS, and RADIUS dictionaries. These locations vary from platform to platform. You can use Help  About Wireshark  Folders or tshark -G folders to find the default locations on your system.

Getting Help

The User’s Guide, manual pages and various other documentation can be found at

Community support is available on Wireshark’s Q&A site and on the wireshark-users mailing list. Subscription information and archives for all of Wireshark’s mailing lists can be found on the web site.

Bugs and feature requests can be reported on the issue tracker.

You can learn protocol analysis and meet Wireshark’s developers at SharkFest.

How You Can Help

The Wireshark Foundation helps as many people as possible understand their networks as much as possible. You can find out more and donate at

Frequently Asked Questions

A complete FAQ is available on the Wireshark web site.