Huge thanks to our Platinum Members Endace and LiveAction,
and our Silver Member Veeam, for supporting the Wireshark Foundation and project.

Wireshark 1.12.12 Release Notes

1. What is Wireshark?

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

2. What’s New

2.1. Bug Fixes

The following vulnerabilities have been fixed:

The following bugs have been fixed:

  • Saving pcap capture file with ERF encapsulation creates an invalid pcap file. (Bug 3606)
  • Don’t copy details of hidden columns. (Bug 11788)
  • The stream number in tshark’s "-z follow,tcp,<stream number>" option is 0-origin rather than 1-origin. (Bug 12383)
  • ICMPv6 dissector doesn’t respect actual packet length. (Bug 12400)
  • Format DIS header timestamp mm:ss.nnnnnn. (Bug 12402)
  • Ethernet type field with a value of 9100 is shown as "Unknown". (Bug 12441)
  • SMB Open andX extended response decoded incorrectly. (Bug 12472)

Windows installers and PortableApps® packages are dual signed using SHA-1 and SHA-256 in order to comply with Microsoft Authenticode policy. Windows 7 and Windows Server 2008 R2 users should ensure that update 3123479 is installed. Windows Vista and Windows Server 2008 users should ensure that hotfix 2763674 is installed.

2.2. New and Updated Features

There are no new features in this release.

2.3. New Protocol Support

There are no new protocols in this release.

2.4. Updated Protocol Support

CSN.1, DIS, Ethernet, GSM A RR, ICMPv6, IEEE 802.11, JXTA, LAPSat, LPADm, LTE-RRC, OpenFlow, P1, SMB, SPOOLSS, UMTS FP, USB, and WBXML

2.5. New and Updated Capture File Support

Aethra, CoSine, DBS Etherwatch, ERF, iSeries, Ixia IxVeriWave, NetScreen, Toshiba, and VMS TCPIPtrace

3. Getting Wireshark

Wireshark source code and installation packages are available from

3.1. 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.

4. 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 About→Folders to find the default locations on your system.

5. Known Problems

Dumpcap might not quit if Wireshark or TShark crashes. (Bug 1419)

The BER dissector might infinitely loop. (Bug 1516)

Capture filters aren’t applied when capturing from named pipes. (Bug 1814)

Filtering tshark captures with read filters (-R) no longer works. (Bug 2234)

The 64-bit Windows installer does not support Kerberos decryption. (Win64 development page)

Resolving (Bug 9044) reopens (Bug 3528) so that Wireshark no longer automatically decodes gzip data when following a TCP stream.

Application crash when changing real-time option. (Bug 4035)

Hex pane display issue after startup. (Bug 4056)

Packet list rows are oversized. (Bug 4357)

Wireshark and TShark will display incorrect delta times in some cases. (Bug 4985)

6. Getting Help

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.

Official Wireshark training and certification are available from Wireshark University.

7. Frequently Asked Questions

A complete FAQ is available on the Wireshark web site.