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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.

Wireshark is hosted by the Wireshark Foundation, a nonprofit which promotes protocol analysis education. Wireshark and the foundation depend on your contributions in order to do their work. If you or your organization would like to contribute or become a sponsor, please visit wiresharkfoundation.org.

What’s New

Bug Fixes

The following vulnerabilities have been fixed:

The following bugs have been fixed:

  • Refresh interface during live-capture leads to corrupt interface handling. Issue 11176.

  • Media type "application/octet-stream" registered for both Thread and UASIP. Issue 14729.

  • Extcap toolbar stops working when new interface is added. Issue 19854.

  • Decoding error ITS CPM version 2.1.1. Issue 19886.

  • Build error in 4.3.0: sync_pipe_run_command_actual error: argument 2 is null but the corresponding size argument 3 value is 512004 [-Werror=nonnull] Issue 19930.

  • html2text.py doesn’t handle the <sup> tag. Issue 20020.

  • Incorrect NetFlow v8 TOS AS aggregation dissection. Issue 20021.

  • The Windows packages don’t ship with the IP address plugin. Issue 20030.

  • O_PATH is Linux-and-FreeBSD-specific. Issue 20031.

  • Wireshark 4.4.0 doesn’t install USBcap USBcapCMD.exe in the correct directory. Issue 20040.

  • OER dissector is not considering the preamble if ASN.1 SEQUENCE definition includes extension marker but no OPTIONAL items. Issue 20044.

  • Bluetooth classic L2CAP incorrect dissection with connectionless reception channel. Issue 20047.

  • Profile auto switch filters : Grayed Display Filter Expression dialog box when opened from Configuration Profiles dialog box. Issue 20049.

  • Wireshark 4.4.0 / macOS 14.6.1 wifi if monitor mode. Issue 20051.

  • TECMP Data Type passes too much data to sub dissectors. Issue 20052.

  • Wireshark and tshark 4.4.0 ignore extcap options specified on the command line. Issue 20054.

  • Cannot open release notes due to incorrect path with duplicated directory components. Issue 20055.

  • Unable to open "Release Notes" from the "Help" menu. Issue 20056.

  • No capture interfaces if Wireshark is started from command line with certain paths. Issue 20057.

  • Wireshark 4.4.0 extcap path change breaks third party extcap installers. Issue 20069.

  • Fuzz job UTF-8 encoding issue: fuzz-2024-09-10-7618.pcap. Issue 20071.

  • Unable to create larger files than 99 size units. Issue 20079.

  • Opening Wireshark 4.4.0 on macOS 15.0 disconnects iPhone Mirroring. Issue 20082.

  • PRP trailer not shown for L2 IEC 61850 GOOSE packets in 4.4.0 (was working in 4.2.7) Issue 20088.

  • GUI lags because NetworkManager keeps turning 802.11 monitor mode off. Issue 20090.

  • Error while getting Bluetooth application process id by <shell:ps -A | grep com.*android.bluetooth> Issue 20100.

  • Fuzz job assertion: randpkt-2024-10-05-7200.pcap. Issue 20110.

New and Updated Features

  • The TShark syntax for dumping only fields with a certain prefix has changed from -G fields prefix to -G fields,prefix. This allows tshark -G fields to again support also specifying the configuration profile to use.

New Protocol Support

There are no new protocols in this release.

Updated Protocol Support

AppleTalk, ARTNET, BGP, BT L2CAP, CIGI, CIP Motion, CoAP, COSE, DISTCC, DMP, Ethernet OAM PDU, F5 FILEINFO, GIOP, GOOSE, GSM Management, GSM SIM, GTP, HTTP, HTTP2, ID3v2, IDN, IEEE 1609.2, IEEE 802.11, IPPUSB, iRDMA, ISystemActivator, ITS, Kerberos, LwM2M-TLV, MMS, MQ, MySQL, NCP SSS, NetFlow, OER, OWAMP, QNET, RELOAD Framing, RTCP, RTLS, SANE, SMB2, SSyncP, Sysdig Event, T.124, TECMP, Thread, Thrift, and TWAMP

New and Updated Capture File Support

BLF, CLLOG, CommView, ERF, and pcap

Updated File Format Decoding Support

There is no updated file format support in this release.

Prior Versions

This document only describes the changes introduced in Wireshark 4.4.1. You can find release notes for prior versions at the following locations:

Wireshark 4.4.0 included the following changes. See the release notes for details:

Many improvements and fixes to the graphing dialogs, including I/O Graphs, Flow Graph / VoIP Calls, and TCP Stream Graphs.

Wireshark now supports automatic profile switching. You can associate a display filter with a configuration profile, and when you open a capture file that matches the filter, Wireshark will automatically switch to that profile.

Support for Lua 5.3 and 5.4 has been added, and support for Lua 5.1 and 5.2 has been removed. The Windows and macOS installers now ship with Lua 5.4.6.

Improved display filter support for value strings (optional string representations for numeric fields).

Display filter functions can be implemented as plugins, similar to protocol dissectors and file parsers.

Display filters can be translated to pcap filters using Edit › Copy › Display filter as pcap filter if each display filter field has a corresponding pcap filter equivalent.

Custom columns can be defined using any valid field expression, such as display filter functions, packet slices, arithmetic calculations, logical tests, raw byte addressing, and protocol layer modifiers.

Custom output fields for tshark -e can also be defined using any valid field expression.

Wireshark can be built with the zlib-ng instead of zlib for compressed file support. Zlib-ng is substantially faster than zlib. The official Windows and macOS packages include this feature.

Getting Wireshark

Wireshark source code and installation packages are available from https://www.wireshark.org/download.html.

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 https://www.wireshark.org/docs/

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 mailing list 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 wiresharkfoundation.org.

Frequently Asked Questions

A complete FAQ is available on the Wireshark web site.