Wireshark 4.2.12 is now available
I'm proud to announce the release of Wireshark 4.2.12.
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[1].
What’s New
Bug Fixes
• wnpa-sec-2025-02[2] {notable} Dissection engine crash. Issue 20509[3]. CVE-2025-5601[4].
The following bugs have been fixed:
• GRPC: protobuf_json only displays the truncated string value. Issue 20392[5].
• Trailing octet after IPv4 packet end is not detected or displayed in raw bytes. Issue 20423[6].
• Wireshark does not correctly decode LIN "go to sleep" in TECMP and CMP. Issue 20463[7].
• Fuzz job crash: fuzz-2025-04-25-7554.pcap. Issue 20509[8].
• WebSocket per-message compression extentions: fail to decompress server messages (from the 2nd) due to parameter handling. Issue 20531[9].
• null. Issue 20539[10].
• The LL_PERIODIC_SYNC_WR_IND packet is not properly dissected (packet-btle.c) Issue 20554[11].
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
ASAM CMP, F1AP, genl, LIN, Logcat Text, net_dm, netfilter, nvme, ProtoBuf, Quake, TECMP, and WebSocket
New and Updated Capture File Support
There is no new or updated capture file support in this release.
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 4.2.12. You can find release notes for prior versions at the following locations:
• Wireshark 4.2.11[12]
• Wireshark 4.2.10[13]
• Wireshark 4.2.9[14]
• Wireshark 4.2.8[15]
• Wireshark 4.2.7[16]
• Wireshark 4.2.6[17]
• Wireshark 4.2.5[18]
• Wireshark 4.2.4[19]
• Wireshark 4.2.3[20]
• Wireshark 4.2.2[21]
• Wireshark 4.2.1[22]
• Wireshark 4.2.0[23]
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[24] 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[25] 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[26].
Bugs and feature requests can be reported on the issue tracker[27].
You can learn protocol analysis and meet Wireshark’s developers at SharkFest[28].
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[29].
Frequently Asked Questions
A complete FAQ is available on the Wireshark web site[30].
References
1. https://wiresharkfoundation.org
2. https://www.wireshark.org/security/wnpa-sec-2025-02
3. https://gitlab.com/wireshark/wireshark/-/issues/20509
4. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-5601
5. https://gitlab.com/wireshark/wireshark/-/issues/20392
6. https://gitlab.com/wireshark/wireshark/-/issues/20423
7. https://gitlab.com/wireshark/wireshark/-/issues/20463
8. https://gitlab.com/wireshark/wireshark/-/issues/20509
9. https://gitlab.com/wireshark/wireshark/-/issues/20531
10. https://gitlab.com/wireshark/wireshark/-/issues/20539
11. https://gitlab.com/wireshark/wireshark/-/issues/20554
12. https://www.wireshark.org/docs/relnotes/wireshark-4.2.11.html
13. https://www.wireshark.org/docs/relnotes/wireshark-4.2.10.html
14. https://www.wireshark.org/docs/relnotes/wireshark-4.2.9.html
15. https://www.wireshark.org/docs/relnotes/wireshark-4.2.8.html
16. https://www.wireshark.org/docs/relnotes/wireshark-4.2.7.html
17. https://www.wireshark.org/docs/relnotes/wireshark-4.2.6.html
18. https://www.wireshark.org/docs/relnotes/wireshark-4.2.5.html
19. https://www.wireshark.org/docs/relnotes/wireshark-4.2.4.html
20. https://www.wireshark.org/docs/relnotes/wireshark-4.2.3.html
21. https://www.wireshark.org/docs/relnotes/wireshark-4.2.2.html
22. https://www.wireshark.org/docs/relnotes/wireshark-4.2.1.html
23. https://www.wireshark.org/docs/relnotes/wireshark-4.2.0.html
24. https://www.wireshark.org/download.html
25. https://ask.wireshark.org/
26. https://www.wireshark.org/lists/
27. https://gitlab.com/wireshark/wireshark/-/issues
28. https://sharkfest.wireshark.org
29. https://wiresharkfoundation.org
30. https://www.wireshark.org/faq.html
Digests
wireshark-4.2.12.tar.xz: 45095924 bytes
SHA256(wireshark-4.2.12.tar.xz)=6ed51da5f6638aba609be8d1d64a7a85312749a49261146c391fea391a3e5f06
SHA1(wireshark-4.2.12.tar.xz)=e67e209781a3ac1b4658ab5b104a416228aa3896
Wireshark-4.2.12-x64.exe: 86554832 bytes
SHA256(Wireshark-4.2.12-x64.exe)=94a5fc429a5a3ad8353b9a91be6d409546cf02ee8ef57a6d4f4ab1ddbc7ff77c
SHA1(Wireshark-4.2.12-x64.exe)=cf73b4c789a85be0d7337a03c2641fe671ee8ccb
Wireshark-4.2.12-arm64.exe: 68086920 bytes
SHA256(Wireshark-4.2.12-arm64.exe)=9f5297009bd6afa991afd55f76f5370b87fe4729e56eb4f6199e61421c0330af
SHA1(Wireshark-4.2.12-arm64.exe)=176ab8a7bac6831c79b1b3fef64633dcf3ee044d
Wireshark-4.2.12-x64.msi: 63242240 bytes
SHA256(Wireshark-4.2.12-x64.msi)=041575961eeeb19fc59a1fb27678e9998c065d86267e1d0a950d989070ee5960
SHA1(Wireshark-4.2.12-x64.msi)=879a7743a817f1c14e859aa4d13c79208ae94b90
WiresharkPortable64_4.2.12.paf.exe: 53723288 bytes
SHA256(WiresharkPortable64_4.2.12.paf.exe)=cd71a5f426adb96c751645bc62c8de4d9328a338e4da38430de1f40a5ba799d5
SHA1(WiresharkPortable64_4.2.12.paf.exe)=83d4db5697aa0e9cadda1d51cf6bbc64f7283f77
Wireshark 4.2.12 Arm 64.dmg: 65752414 bytes
SHA256(Wireshark 4.2.12 Arm 64.dmg)=3581038c7325b0f810d44b0598bbceab1832c28d8f40912e4e924ec61c79779b
SHA1(Wireshark 4.2.12 Arm 64.dmg)=b0a9b1b1a1da94c36e9eb1e98f602d02ce82428c
Wireshark 4.2.12 Intel 64.dmg: 69522919 bytes
SHA256(Wireshark 4.2.12 Intel 64.dmg)=ac51f031d3b0b7e1a0f323c7356b8a0284ed1369b7435dd221cf29de768e5e4c
SHA1(Wireshark 4.2.12 Intel 64.dmg)=0d24f94da3117ffe3ac28363dfbe3a0b72ed6643
You can validate these hashes using the following commands (among others):
Windows: certutil -hashfile Wireshark-win64-x.y.z.exe SHA256
Linux (GNU Coreutils): sha256sum wireshark-x.y.z.tar.xz
macOS: shasum -a 256 "Wireshark x.y.z Arm 64.dmg"
Other: openssl sha256 wireshark-x.y.z.tar.xz
Wireshark 4.2.12 has been released. The release addresses several bug fixes, including wnpa-sec-2025-02, GRPC, trailing octet after the end of IPv4 packets, and the incorrect decoding of LIN "go to sleep" in TECMP and CMP by Wireshark. It also fixes problems with crashes from fuzz jobs, WebSocket message compression, empty packets, and the incorrect analysis of LL_PERIODIC_SYNC_WR_IND packets. This release does not include any new or updated features, such as new protocol support, updated protocol support, capture file support, or enhancements in file format decoding support.
