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

Bug Fixes

The following bugs have been fixed:

• Potential mis-match in GSM MAP dissector for uncertainty radius and its filter key. Issue 20247.
• Macro eNodeB ID and Extended Macro eNodeB ID not decoded by User Location Information. Issue 20276.
• The NFSv2 Dissector appears to be swapping Character Special File and Directory in mode decoding. Issue 20290.
• CMake discovers Strawberry Perl’s zlib DLL when it shouldn’t. Issue 20304.
• VOIP Calls call flow displaying hours. Issue 20311.
• Fuzz job issue: fuzz-2024-12-26-7898.pcap. Issue 20313.
• sFlow: Incorrect length passed to header sample dissector. Issue 20320.
• wsutil: Should link against -lm due to missing fabs() when built with -fno-builtin. Issue 20326.

New and Updated Features

New Protocol Support

• There are no new protocols in this release.

Updated Protocol Support

• ARTNET, ASN.1 PER, BACapp, BBLog, BT BR/EDR RF, CQL, Diameter, DOF, ECMP, FiveCo RAP, FTDI FT, GSM COMMON, GTPv2, HCI_MON, HSRP, HTTP2, ICMPv6, IEEE 802.11, Kafka, LTE RRC, MBIM, MMS, Modbus/TCP, MPEG PES, NAS-EPS, NFS, NGAP, NR RRC, PLDM, PN-DCP, POP, ProtoBuf, PTP, RLC, RPC, RTCP, sFlow, SIP, SRT, TCP, UCP, USBCCID, Wi-SUN, and ZigBee ZCL

New and Updated Capture File Support

• CLLog EMS ERF
• Updated File Format Decoding Support
• There is no updated file format support in this release.

Security Enhancements

The Wireshark team continues to prioritize security, addressing vulnerabilities found in previous versions:

• Fixed a FiveCo RAP dissector infinite loop vulnerability (wnpa-sec-2024-14).
• Resolved an ECMP dissector crash issue (wnpa-sec-2024-15).
• Wireshark 4.4.3 builds upon the improvements introduced in version 4.4.0:
• Automatic Profile Switching: Users can now associate display filters with configuration profiles, allowing Wireshark to automatically switch profiles based on the opened capture file.
• Enhanced Display Filters: Improved support for value strings and the ability to implement display filter functions as plugins.
• Custom Columns and Output Fields: Users can define custom columns and output fields using any valid field expression, offering greater flexibility in data presentation.