Wireshark is the world's foremost and widely-used network protocol analyzer. It lets you see what's happening on your network at a microscopic level and is the de facto (and often de jure) standard across many commercial and non-profit enterprises, government agencies, and educational institutions. Wireshark development thrives thanks to the volunteer contributions of networking experts around the globe and is the continuation of a project started by Gerald Combs in 1998.

Features

  • Deep inspection of hundreds of protocols, with more being added all the time
  • Live capture and offline analysis
  • Standard three-pane packet browser
  • Multi-platform: Runs on Windows, Linux, macOS, Solaris, FreeBSD, NetBSD, and many others
  • Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility
  • The most powerful display filters in the industry
  • Rich VoIP analysis
  • Read/write many different capture file formats: tcpdump (libpcap), Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer (compressed and uncompressed), Sniffer Pro, and NetXray, Network Instruments Observer, NetScreen snoop, Novell LANalyzer, RADCOM WAN/LAN Analyzer, Shomiti/Finisar Surveyor, Tektronix K12xx, Visual Networks Visual UpTime, WildPackets EtherPeek/TokenPeek/AiroPeek, and many others
  • Capture files compressed with gzip can be decompressed on the fly
  • Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platform)
  • Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
  • Coloring rules can be applied to the packet list for quick, intuitive analysis
  • Output can be exported to XML, PostScript®, CSV, or plain text

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 will likely 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.

New and Updated Features

  • The media type dissector table now properly treats media types and subtypes as case-insensitive automatically, per RFC 6838. Media types no longer need to be lower cased before registering or looking up in the table.

Bug Fixes

The following vulnerabilities have been fixed:

  • wnpa-sec-2023-12 Candump log file parser crash. Issue 19062. CVE-2023-2855.
  • wnpa-sec-2023-13 BLF file parser crash. Issue 19063. CVE-2023-2857.
  • wnpa-sec-2023-14 GDSDB dissector infinite loop. Issue 19068.
  • wnpa-sec-2023-15 NetScaler file parser crash. Issue 19081. CVE-2023-2858.
  • wnpa-sec-2023-16 VMS TCPIPtrace file parser crash. Issue 19083. CVE-2023-2856.
  • wnpa-sec-2023-17 BLF file parser crash. Issue 19084. CVE-2023-2854.
  • wnpa-sec-2023-18 RTPS dissector crash. Issue 19085. CVE-2023-0666.
  • wnpa-sec-2023-19 IEEE C37.118 Synchrophasor dissector crash. Issue 19087. CVE-2023-0668.
  • wnpa-sec-2023-20 XRA dissector infinite loop. Issue 19100.

The following bugs have been fixed:

  • Conversations list has incorrect unit (bytes) in bit speed columns in the 3.7 development versions. Issue 18211.
  • The media_type table should treat media types, e.g. application/3gppHal+json, as case-insensitive. Issue 18611.
  • NNTP dissector bug. Issue 18981.
  • Incorrect padding in BFCP decoder. Issue 18890.
  • SPNEGO dissector bug. Issue 18991.
  • SRT values are incorrect when applying a time shift. Issue 18999.
  • Add warning that capturing is not supported in Wireshark installed from flatpak. Issue 19008.
  • Opening Wireshark with -z io,stat option. Issue 19042.
  • batadv dissector bug. Issue 19047.
  • radiotap-gen build fails if pcap is not found. Issue 19059.
  • [UDS] When filtering the uds.wdbi.data_identifier or uds.iocbi.data_identifier field is interpreted as 1 byte whereas it consists of 2 bytes. Issue 19078.
  • Wireshark can't save this capture in that format. Issue 19080.
  • MSMMS parsing buffer overflow. Issue 19086.
  • USB HID parser shows wrong label for usages Rx/Vx/Vbrx of usage page Generic Desktop Control. Issue 19095.
  • "Follow → QUIC Stream" mixes data between streams. Issue 19102.