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= Wireshark {wireshark-version} Release Notes
// Asciidoctor Syntax Quick Reference:
// https://asciidoctor.org/docs/asciidoc-syntax-quick-reference/

== 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 https://wiresharkfoundation.org[wiresharkfoundation.org].

If you use Wireshark professionally or you just want to learn more about protocol analysis, you should join us at https://sharkfest.wireshark.org/[SharkFest], the Wireshark developer and user conference.

You can also become a Wireshark Certified Analyst! Official Wireshark training and certification are available from
https://www.wireshark.org/certifications[the Wireshark Foundation].

== What’s New

// Uncomment for the last release(s) of this branch.
// This is the last release with official support for Windows 10, version 1809 and Windows Server 2019.

// This might be the last supported "old stable" branch.

=== Bug Fixes

The following vulnerabilities have been fixed:

// * wssalink:2026-92[] {notable}
// Foo protocol dissector {crash,infinite loop,memory leak}.
// wsbuglink:xxx[].
// cveidlink:2026-xxx[].
// Fixed in master: xxx
// Fixed in release-4.6: xxx
// Fixed in release-4.4: xxx
// CVSS AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
// CWE-???

The following bugs have been fixed:

//* wsbuglink:5000[]
//* wsbuglink:6000[Wireshark bug]
//* cveidlink:2014-2486[]
// Bugs with the {notable} attribute show up in the "What's Changed" box on the download page.
//* Wireshark contains traces of nuts. What kind of nuts? The kind you're allergic to. wsbuglink:5000[] {notable}


// == Known Bugs

=== New and Updated Features

//  * The Windows installers now ship with Npcap 1.88.
//    They previously shipped with Npcap 1.87.

// * The Windows installers now ship with Qt 6.10.3.
//   They previously shipped with Qt 6.9.3.

// === Removed Features and Support

// === Removed Dissectors

=== New Protocol Support

There are no new protocols in this release.

=== Updated Protocol Support

// Add one protocol per line between the -- delimiters.
// rg -A1 '(define PSNAME|proto_register_protocol[^_])' $(git diff --name-only v4.6.8.. | rg packet- | sort -u)
[commaize]
--
--

=== New and Updated Capture File Support

// There is no new or updated capture file support in this release.
// Add one file type per line between the -- delimiters.
[commaize]
--
--

=== New and Updated File Format Decoding Support

There is no new or updated file format support in this release.
// Add one file type per line between the -- delimiters.
// [commaize]
// --
// --

// === New and Updated Capture Interfaces support

// [commaize]
// --
// --

//=== New and Updated Codec support

//_Non-empty section placeholder._

// === Major API Changes

=== Plugin Development Changes

On UN*X systems (excluding macOS when running from an app bundle, as
with the official installer) extcap binaries are now searched for under
the libexec directory by default, e.g., `/usr/libexec/wireshark/extcap`
instead of `/usr/lib64/wireshark/extcap` or similar. This is the customary
place for helper binaries, which as opposed to libraries do not need
multiarch support. The location can be overridden via the environment
variable WIRESHARK_EXTCAP_DIR. The extcap binaries shipped with Wireshark
are installed in the new location, but third party extcaps may need
packaging changes. This change was effective in version 4.6.0, but was not
explicitly noted in the release notes previously. Note that some distributions
do not use a libexec directory, such as Alpine Linux, which does not have
multilib support. On such systems extcap binaries should be in the same
location as before.

== Prior Versions

=== Wireshark 4.6.8 included the following changes.

* wssalink:2026-64[]
sharkd crash.
wsbuglink:21395[].

* wssalink:2026-65[]
sharkd crash.
wsbuglink:21399[].

* wssalink:2026-66[]
UMTS FP protocol dissector crash.
wsbuglink:21413[].

* wssalink:2026-67[]
RDP protocol dissector crash.
wsbuglink:21396[].

* wssalink:2026-68[]
TTX Logger file parser crash.
wsbuglink:21389[].

* wssalink:2026-69[]
Dissection engine reassembly crash.
wsbuglink:21423[].

* wssalink:2026-70[]
BUSMASTER file parser abnormal exit.
wsbuglink:21435[].

* wssalink:2026-71[]
Tektronix K12xx file parser crash.
wsbuglink:21414[].

* wssalink:2026-72[]
ERF file parser crash.
wsbuglink:21415[].

* wssalink:2026-73[]
Bluetooth Attribute Protocol dissector crash.
wsbuglink:21424[].

* wssalink:2026-74[]
Catapult DCT2000 file parser crash.
wsbuglink:21427[].

* wssalink:2026-75[]
C12.22 protocol dissector crash.
wsbuglink:21439[].

* wssalink:2026-76[]
CMS protocol dissector crash.
wsbuglink:21446[].

* wssalink:2026-77[]
H.245 protocol dissector crash.
wsbuglink:21447[].

* wssalink:2026-78[]
Kerberos protocol dissector crash.
wsbuglink:21449[].

* wssalink:2026-79[]
Bluetooth HFP Profile protocol dissector crash.
wsbuglink:21451[].

* wssalink:2026-80[]
Bluetooth BR/EDR FHS protocol dissector crash.
wsbuglink:21452[].

* wssalink:2026-81[]
3gpp phone log file parser crash.
wsbuglink:21454[].

* wssalink:2026-82[]
Ixia IxVeriWave and Vector Informatik BLF file parser crashes on Windows.
wsbuglink:21455[].

* wssalink:2026-83[]
CMS protocol dissector crash.
wsbuglink:21457[], wsbuglink:21458[].

* wssalink:2026-84[]
Pcapng file parser crash.
wsbuglink:21460[].

* wssalink:2026-85[]
SSH protocol dissector crash.
wsbuglink:21465[].

* wssalink:2026-86[]
ESS protocol dissector crash.
wsbuglink:21467[].

* wssalink:2026-87[]
X.509IF protocol dissector crash.
wsbuglink:21469[].
cveidlink:2026-xxx[].

* wssalink:2026-88[]
RRC protocol dissector crash.
wsbuglink:21478[].

* wssalink:2026-89[]
C12.22 protocol dissector crash.
wsbuglink:21480[].

* wssalink:2026-90[]
Gammu DCT3 trace file parser crash.
wsbuglink:21475[].

* wssalink:2026-91[]
Bluetooth AVRCP Profile protocol dissector crash.
wsbuglink:21488[].

* Fuzz job crash: randpkt-2026-05-22-14496207576.pcap. wsbuglink:21266[].
* Wireshark Version 4.6.6 - File Capture Properties is excessively slow and hangs Wireshark on Windows. wsbuglink:21337[].
* TCP Preference 'Analyze TCP sequence numbers' SEGFAULTs when toggled. wsbuglink:21380[].
* Wireshark misdecodes S-NSSAI location validity information IE (5G NAS) wsbuglink:21411[].
* Wireshark misdecodes NSAG information IE (5G NAS) wsbuglink:21412[].
* Fuzz job UTF-8 encoding issue: fuzz-2026-07-17-15393056954.pcap. wsbuglink:21419[].
* Wireshark misdecodes UE security capability IE (5G NAS) wsbuglink:21431[].
* Wireshark misdecodes Registration wait range IE (5G NAS) wsbuglink:21432[].
* Wireshark misdecodes Extended CAG information IE (5G NAS) wsbuglink:21433[].
* Stack buffer overflow in K12/RF5 writer. wsbuglink:21436[].
* Security issues fixed in 4.6.8 and 4.4.18 Tracker. wsbuglink:21437[].
* BLF writer out-of-bounds read on truncated VLAN-tagged Ethernet frames. wsbuglink:21441[].
* DLMS/COSEM compact-array TypeDescription recursion bypass can exhaust the stack. wsbuglink:21442[].
* packet-knxip: Secure Wrapper size-offset causes NULL deref / SEGV when decrypting. wsbuglink:21444[].
* wiretap/rtpdump: swapped caplen/len on truncated samples. wsbuglink:21445[].
* H.245 returnedFunction nested GenericMessage dereferences NULL packet state. wsbuglink:21447[].
* X.509 export-object tap dereferences missing certificate subject. wsbuglink:21448[].
* Sniffer REC_HEADER2 error path over-reads stack buffer. wsbuglink:21461[].
* Deep NetLog JSON nesting exhausts the native stack. wsbuglink:21462[].
* androiddump signed btsnoop length causes global out-of-bounds read. wsbuglink:21464[].
* ERF writer underflows payload length for tiny truncated packets. wsbuglink:21466[].
* Wireshark misdecodes SOR transparent container IE (5G NAS) wsbuglink:21472[].
* Unbounded Daintree timestamp fraction causes signed integer overflow. wsbuglink:21473[].
* Wireshark misdecodes SOR-CMCI of SOR transparent container IE (5G NAS) wsbuglink:21477[].
* Wireshark misdecodes Service level AA container (5GSM NAS) wsbuglink:21479[].

=== Wireshark 4.6.7 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.7.html[release notes]
for details:

* wssalink:2026-52[]
Catapult DCT2000 protocol dissector crash.
wsbuglink:21270[].

* wssalink:2026-53[]
pcapng file parser crash.
wsbuglink:21285[].

* wssalink:2026-54[]
FMP/NOTIFY protocol dissector large loop.
wsbuglink:21347[].

* wssalink:2026-55[]
SSH protocol dissector crash.
wsbuglink:21378[].

* wssalink:2026-56[]
TLS ECH decryption crash.
wsbuglink:21390[].

* wssalink:2026-57[]
IEEE 802.11 protocol dissector crash.
wsbuglink:21391[].

* wssalink:2026-58[]
Z39.50 protocol dissector crash.
wsbuglink:21397[].

* wssalink:2026-59[]
UMTS FP protocol dissector crash.
wsbuglink:21398[].

* wssalink:2026-60[]
BLF file parser information disclosure.
wsbuglink:21361[].

* wssalink:2026-61[]
Multiple protocol dissector infinite loops.
wsbuglink:21275[],
wsbuglink:21277[],
wsbuglink:21330[],
wsbuglink:21383[].

* wssalink:2026-62[]
DBS Etherwatch file parser crash.
wsbuglink:21352[].

* wssalink:2026-63[]
Ciscodump extcap crash.
wsbuglink:21375[].

* Wireshark appears in German when the system language is Dutch. wsbuglink:20347[].
* Qt: Capture filter combo box does not enforce minimum size or expanding size policy. wsbuglink:21080[].
* BACapp: Error parsing you-are request. wsbuglink:21260[].
* Use-After-Free in Ethernet POWERLINK (EPL) Dissector during profile loading error path. wsbuglink:21267[].
* Sponsor slides are not properly shown. wsbuglink:21268[].
* Buffer overlow/segfault in Catapult DCT2000 dissector via not check no_ddi_entries in header. wsbuglink:21270[].
* Fuzz job issue: fuzz-2026-05-24-14517548985.pcap. wsbuglink:21272[].
* Fuzz job UTF-8 encoding issue: fuzz-2026-06-07-14732586286.pcap. wsbuglink:21331[].
* Memory leak in alp-sample1.pcap. wsbuglink:21343[].
* Memory leak in nspi.pcap. wsbuglink:21344[].
* Heap-Buffer-Overflow in Wireshark Logcat Parser. wsbuglink:21346[].
* IPv6 Ping from Debian (among others) is dissected as "HiPerConTracer" wsbuglink:21349[].
* HEVC (H.265) dissector: bit_offset not advanced after sub_layer_hrd_parameters() causes false Malformed Packet. wsbuglink:21362[].
* dfilter_compile_full: heap-buffer-overflow READ in ws_strptime on a time literal. wsbuglink:21376[].
* Wireshark crashes with a HEAP_CORRUPTION error when using the last saved recent_common file. wsbuglink:21379[].
* Fuzz job issue: fuzz-2026-06-30-15106674620.pcap. wsbuglink:21381[].

=== Wireshark 4.6.6 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.6.html[release notes]
for details:

* wssalink:2026-51[]
ROHC protocol dissector crash.
wsbuglink:21243[].

* Wireshark crashes when run under Visual Studio on Windows. https://gitlab.com/wireshark/wireshark/-/work_items/21251[Work item 24787].

* Welcome page slide preferences are now available in the preferences window.

* vwr: Read of uninitialized memory in pntoh16. wsbuglink:16460[].
* vwr: Read of uninitialized memory in find_signature. wsbuglink:16461[].
* Upgrades on Windows do not retain existing optional features unless explicitly requested, resulting in accidental removal of features. wsbuglink:18925[].
* Wireshark.exe version 4.6.5 is twice as large as version 4.6.4. wsbuglink:21233[].
* MACsec dissector global-buffer-overflow. wsbuglink:21235[].
* Wireshark 4.6.5 does not run on Windows 10 version 1809 (including Server 2019 and some LTSC versions) wsbuglink:21237[].
* Fuzz job issue: fuzz-2026-05-02-14184750352.pcap. wsbuglink:21240[].
* packet-bacapp: rename aurth-request to auth-request. wsbuglink:21246[].
* Fuzz job issue: randpkt-2026-05-10-14293434231.pcap. wsbuglink:21253[].

=== Wireshark 4.6.5 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.5.html[release notes]
for details:

* wssalink:2026-08[]
Monero dissector crash.
wsbuglink:21066[].
cveidlink:2026-5409[].

* wssalink:2026-09[]
BT-DHT dissector crash.
wsbuglink:21067[].
cveidlink:2026-5408[].

* wssalink:2026-10[]
FC-SWILS dissector crash.
wsbuglink:21070[].
cveidlink:2026-5406[].

* wssalink:2026-11[]
SMB2 dissector infinite loop.
wsbuglink:21073[].
cveidlink:2026-5407[].

* wssalink:2026-12[]
ICMPv6 dissector crash.
wsbuglink:21077[].
cveidlink:2026-5299[].

* wssalink:2026-13[]
AFP dissector crash.
wsbuglink:21088[].
cveidlink:2026-5401[].

* wssalink:2026-14[]
TLS dissector crash and possible code execution.
wsbuglink:21090[].
cveidlink:2026-5402[].

* wssalink:2026-15[]
K12 RF5 file parser crash.
wsbuglink:21094[].
cveidlink:2026-5404[].

* wssalink:2026-16[]
SBC codec crash and possible code execution.
wsbuglink:21103[].
cveidlink:2026-5403[].

* wssalink:2026-17[]
RDP dissector crash and possible code execution.
wsbuglink:21105[].
cveidlink:2026-5405[].

* wssalink:2026-18[]
AMR-NB codec crash.
wsbuglink:21111[].
cveidlink:2026-5654[].

* wssalink:2026-19[]
SDP dissector crash.
wsbuglink:2111[].
cveidlink:2026-5655[].

* wssalink:2026-20[]
iLBC audio codec crash.
wsbuglink:21113[].
cveidlink:2026-5657[].

* wssalink:2026-21[]
Profile import crash and possible code execution.
wsbuglink:21115[].
cveidlink:2026-5656[].

* wssalink:2026-22[]
DCP-ETSI protocol dissector crash.
wsbuglink:21122[].
cveidlink:2026-5653[].

* wssalink:2026-23[]
BEEP protocol dissector crash.
wsbuglink:21120[].
cveidlink:2026-6538[].

* wssalink:2026-24[]
ZigBee protocol dissector crash.
wsbuglink:21125[].
cveidlink:2026-6537[].

* wssalink:2026-25[]
DLMS/COSEM protcol dissector infinite loop.
wsbuglink:21065[].
cveidlink:2026-6536[].

* wssalink:2026-26[]
Dissection engine zlib decompression crash.
wsbuglink:21097[], wsbuglink:21098[].
cveidlink:2026-6535[].

* wssalink:2026-27[]
USB HID protocol dissector infinite loop.
wsbuglink:21121[].
cveidlink:2026-6534[].

* wssalink:2026-28[]
Dissection engine LZ77 decompression crash.
wsbuglink:21127[].
cveidlink:2026-6533[].

* wssalink:2026-29[]
Kismet protocol dissector crash.
wsbuglink:21129[], wsbuglink:21128[].
cveidlink:2026-6532[].

* wssalink:2026-30[]
SANE protocol dissector infinite loop.
wsbuglink:21139[].
cveidlink:2026-6531[].

* wssalink:2026-31[]
DCP-ETSI protocol dissector crash.
wsbuglink:21144[].
cveidlink:2026-6530[].

* wssalink:2026-32[]
iLBC audio codec crash.
wsbuglink:21145[].
cveidlink:2026-6529[].

* wssalink:2026-33[]
TLS dissector infinite loop.
wsbuglink:21151[].
cveidlink:2026-6528[].

* wssalink:2026-34[]
ASN.1 PER protocol dissector crash.
wsbuglink:21149[].
cveidlink:2026-6527[].

* wssalink:2026-35[]
RTSP protocol dissector crash.
wsbuglink:21173[].
cveidlink:2026-6526[].

* wssalink:2026-36[]
IEEE 802.11 protocol dissector crash.
wsbuglink:21008[].
cveidlink:2026-6525[].

* wssalink:2026-37[]
MySQL protocol dissector crash.
wsbuglink:21172[].
cveidlink:2026-6524[].

* wssalink:2026-38[]
GNW protocol dissector infinite loop.
wsbuglink:21177[].
cveidlink:2026-6523[].

* wssalink:2026-39[]
OpenFlow v5 protocol dissector infinite loops.
wsbuglink:21182[], wsbuglink:21188[].
cveidlink:2026-6521[].

* wssalink:2026-40[]
OpenFlow v6 protocol dissector infinite loop.
wsbuglink:21181[].
cveidlink:2026-6520[].

* wssalink:2026-41[]
MBIM dissector infinite loop.
wsbuglink:21184[].
cveidlink:2026-6519[].

* wssalink:2026-42[]
RPKI-Router protocol dissector infinite loop.
wsbuglink:21186[].
cveidlink:2026-6522[].

* wssalink:2026-43[]
GSM RP protocol dissector crash.
wsbuglink:21189[].
cveidlink:2026-6870[].

* wssalink:2026-44[]
WebSocket protocol dissector crash.
wsbuglink:21190[].
cveidlink:2026-6869[].

* wssalink:2026-45[]
SMB2 protocol dissector crash.
wsbuglink:21191[].

* wssalink:2026-46[]
HTTP protocol dissector crash.
wsbuglink:21185[].
cveidlink:2026-6868[].

* wssalink:2026-47[]
Sharkd utility memory leak.
wsbuglink:21214[].

* wssalink:2026-48[]
Sharkd utility crash.
wsbuglink:21206[].

* wssalink:2026-49[]
Sharkd utility crash.
wsbuglink:21207[].

* wssalink:2026-50[]
UDS protocol dissector infinite loop.
wsbuglink:21225[].

* WSUG: Enabled Protocols dialog needs an update. wsbuglink:20871[].
* Build failure with Qt 6.11 beta. wsbuglink:20965[].
* BLF: Missing 4 byte alignment makes BLF files incompatible with Vector's tools. wsbuglink:21017[].
* SMB2 decryption keys in smb2_seskey_list are not loaded on restart. wsbuglink:21036[].
* Fuzz job issue: fuzz-2026-03-01-13307044520.pcap. wsbuglink:21049[].
* Window with a message for ssh_strict_fopen. wsbuglink:21051[].
* IEEE 1722.1 Dissector for Stream Input Counters displays FRAMES_RX as "Stream Packets TX" wsbuglink:21055[].
* Wireshark 4.6.4 crashes. wsbuglink:21058[].
* Compilation error with Lua-5.5. wsbuglink:21060[].
* BSOD issue affecting Npcap 1.86. wsbuglink:21062[].
* Adding descriptions to BLF interfaces broke the Capture File Properties view. wsbuglink:21069[].
* Assertion Failure in ws_buffer_remove_start via Malformed Packet Manipulation. wsbuglink:21078[].
* Modbus/RTU fails to decode broadcast frames. wsbuglink:21091[].
* Lua not included unless CMake version >= 3.25. wsbuglink:21093[].
* sshdump: Regression in v4.6.4 – Failed to resolve hostname aliases from .ssh/config on Windows. wsbuglink:21114[].
* Fuzz job crash: fuzz-2026-03-25-13637733472.pcap. wsbuglink:21117[].
* dumpcap TCP@ section-header parsing remote heap corruption. wsbuglink:21132[].
* Netflix BBLog EVENT parsing crash. wsbuglink:21133[].
* On Windows, the Follow Stream feature output is shown in proportional font after zooming. wsbuglink:21137[].
* RTP Streams dialog Time of Day inconsistent behavior. wsbuglink:21138[].
* Sysdig Event Block Integer Underflow. wsbuglink:21140[].
* RF4CE NWK Dissector Heap Buffer Overflow (crash/OOB) wsbuglink:21150[].
* NetXray/Sniffer Padding Integer Underflow. wsbuglink:21152[].
* HTTP/2 ALTSVC/PRIORITY_UPDATE Frame Length Truncation (24-bit to 16-bit) wsbuglink:21155[].
* Snort config parser 2 buffer overflows. wsbuglink:21165[].
* ESP NULL Encryption Integer Underflow triggers Heap Overflow. wsbuglink:21166[].
* Heap buffer overflow in ISO 8583 dissector bin2hex() wsbuglink:21171[].
* wslua: NULL pointer dereference in get_dissector when passing an invalid GUID string to an FT_GUID table. wsbuglink:21194[].
* Fuzz job UTF-8 encoding issue: fuzz-2026-04-16-13947406035.pcap. wsbuglink:21199[].
* Qt: Waterfall bars misisng in conversation overview when "limit to display filter" is active. wsbuglink:21204[].
* text2pcap: heap-buffer-overflow in memmove when -P"dissector" payload exceeds reserved space. wsbuglink:21208[].
* text2pcap : Stack overflow via unbounded "g_alloca" in regex "seqno" wsbuglink:21209[].
* editcap: --novlan integer underflow in sll_remove_vlan_info causes denial of service on short SLL captures. wsbuglink:21210[].
* NAS-5GS - Mapping issue between IEI 0x7B and "S-NSSAI location validity information" IE. wsbuglink:21218[].
* RTP-MIDI dissector reports incorrect value for MTC Quarter Frame data. wsbuglink:21231[].

=== Wireshark 4.6.4 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.4.html[release notes]
for details:

* wssalink:2026-05[]
USB HID dissector memory exhaustion.
wsbuglink:20972[].
cveidlink:2026-3201[].

* wssalink:2026-06[]
NTS-KE dissector crash.
wsbuglink:21000[].
cveidlink:2026-3202[].

* wssalink:2026-07[]
RF4CE Profile dissector crash.
wsbuglink:21009[].
cveidlink:2026-3203[].

* Wireshark doesn't start if Npcap is configured with "Restrict Npcap driver's Access to Administrators only" wsbuglink:20828[].
* PQC signature algorithm not reported in signature_algorithms. wsbuglink:20953[].
* Unexpected JA4 ALPN values when space characters sent. wsbuglink:20966[].
* Expert Info seems to have quadratic performance (gets slower and slower) wsbuglink:20970[].
* IKEv2 EMERGENCY_CALL_NUMBERS Notify payload cannot be decoded. wsbuglink:20974[].
* TShark and editcap fails with segmentation fault when output format (-F) set to blf. wsbuglink:20976[].
* Fuzz job crash: fuzz-2026-02-01-12944805400.pcap [Zigbee Direct Tunneling Zigbee NWK PDUs NULL hash table] wsbuglink:20977[].
* Wiretap writes pcapng custom options with string values invalidly. wsbuglink:20978[].
* RDM status in Output Status (GoodOutputB) field incorrectly decoded in Art-Net PollReply dissector. wsbuglink:20980[].
* Wiretap writes invalid pcapng Darwin option blocks. wsbuglink:20991[].
* TDS dissector desynchronizes on RPC DATENTYPE (0x28) due to incorrect expectation of TYPE_VARLEN (MaxLen) wsbuglink:21001[].
* Only first HTTP POST is parsed inside SOCKS with "Decode As". wsbuglink:21006[].
* TShark: Bogus "Dissector bug" messages generated in pipelines where something after tshark exits before reading all its input. wsbuglink:21011[].
* New Diameter RAT-Types in TS 29.212 not decoded. wsbuglink:21012[].
* Malformed packet error on Trigger HE Basic frames. wsbuglink:21032[].


=== Wireshark 4.6.3 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.3.html[release notes]
for details:

* wssalink:2026-01[]
BLF file parser crash.
wsbuglink:20880[].

* wssalink:2026-02[]
IEEE 802.11 dissector crash.
wsbuglink:20939[].

* wssalink:2026-03[]
SOME/IP-SD dissector crash.
wsbuglink:20945[].

* wssalink:2026-04[]
HTTP3 dissector infinite loop.
wsbuglink:20944[].

* Wireshark 4.6.0 build fails on Solaris: pcapio.c:441:21: error: request for member '_flag' in something not a structure or union. wsbuglink:20773[].
* RTP Player streams cannot be stopped. wsbuglink:20879[].
* Additional ABI/API compatibility fixes. wsbuglink:20881[].
* Missing data in pinfo->cinfo in HomePlug message CM_ATTEN_CHAR.IND. wsbuglink:20893[].
* maxmind_db: crash when switching from a profile where it's disabled to one where it's enabled. wsbuglink:20903[].
* Compilation warning or error if CFLAGS defines _FORTIFY_SOURCE to other than 3 without first undefining it. wsbuglink:20904[].
* IEEE 802.11: Incorrect parsing of QoS and Mesh Control Field when the frame body contains an A-MSDU. wsbuglink:20905[].
* OSS-Fuzz 473164101: Heap-buffer-overflow in dissect_idn_laser_data. wsbuglink:20936[].
* Bug in decoding 5G NAS message - Extended CAG information list IE. wsbuglink:20946[].

=== Wireshark 4.6.2 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.2.html[release notes]
for details:

This release fixes an API/ABI change that was introduced in Wireshark 4.6.1, which caused a compatibility issue with plugins built for Wireshark 4.6.0. wsbuglink:20881[].

* wssalink:2025-07[]
HTTP3 dissector crash.
wsbuglink:20860[].

* wssalink:2025-08[]
MEGACO dissector infinite loop.
wsbuglink:20884[].

* ws_base32_decode should be named *_encode ? wsbuglink:20754[].
* Omnipeek files not working in 4.6.1. wsbuglink:20876[].
* Stack buffer overflow in wiretap/ber.c (ber_open) wsbuglink:20878[].
* Plugins incompatibility between 4.6.0 & 4.6.1. wsbuglink:20881[].
* Fuzz job crash: fuzz-2025-11-30-12266121180.pcap. wsbuglink:20883[].

* The Windows installers now ship with the Visual C++ Redistributable version 14.44.35112.
  They previously shipped with 14.40.33807.

=== Wireshark 4.6.1 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.1.html[release notes]
for details:

* wssalink:2025-05[] BPv7 dissector crash. wsbuglink:20770[].
* wssalink:2025-06[] Kafka dissector crash. wsbuglink:20823[].

* L2CAP dissector doesn't understand retransmission mode. wsbuglink:2241[].
* DNS HIP dissector labels PK algorithm as HIT length. wsbuglink:20768[].
* clang-cl error in "packet-zbee-direct.c" wsbuglink:20776[].
* Writing to an LZ4-compressed output file might fail. wsbuglink:20779[].
* endian.h conflics with libc for building plugins. wsbuglink:20786[].
* TShark crash caused by Lua plugin. wsbuglink:20794[].
* Wireshark stalls for a few seconds when selecting specific messages. wsbuglink:20797[].
* TLS Abbreviated Handshake Using New Session Ticket. wsbuglink:20802[].
* Custom websocket dissector does not run. wsbuglink:20803[].
* WINREG QueryValue triggers dissector bug in packet-dcerpc.c. wsbuglink:20813[].
* Lua: FileHandler causing crash when reading packets. wsbuglink:20817[].
* Apply As Filter for field with FT_NONE and BASE_NONE for a single byte does not use the hex value. wsbuglink:20818[].
* Layout preference Pane 3 problem with selecting Packet Diagram or None. wsbuglink:20819[].
* TCP dissector creates invalid packet diagram. wsbuglink:20820[].
* Too many nested VLAN tags when opening as File Format. wsbuglink:20831[].
* Omnipeek files not working in 4.6.0. wsbuglink:20842[].
* Support UTF-16 strings in the IsoBus dissector for the string operations. wsbuglink:20845[].
* SNMP getBulkRequest request-id does not get filtered for correctly. wsbuglink:20849[].
* Fuzz job issue: fuzz-2025-11-12-12064814316.pcap. wsbuglink:20852[].
* UDP Port 853 (DoQ) should be decoded as QUIC. wsbuglink:20856[].

=== Wireshark 4.6.0 included the following changes.

See the
https://www.wireshark.org/docs/relnotes/wireshark-4.6.0.html[release notes]
for details:

Wireshark can dissect process information, packet metadata, flow IDs, drop information, and other information provided by `tcpdump` on macOS.

We now ship universal macOS installers instead of separate packages for Arm64 and Intel. wsbuglink:17294[]

WinPcap is no longer supported. On Windows, use Npcap instead, uninstalling WinPcap if necessary.
The final release of WinPcap was version 4.1.3 in 2013.
It only supports up to Windows 8, which is no longer supported by Microsoft or Wireshark.

A new “Plots” dialog has been added, which provides scatter plots in contrast to the “I/O Graphs” dialog, which provides histograms.
The Plots dialog window supports multiple plots, markers, and automatic scrolling.

Live captures can be compressed while writing. (Previously there was
support for compressing when performing multiple file capture, at file
rotation time.) The `--compress` option in TShark works on live captures
as well. wsbuglink:9311[]

Wireshark can now decrypt NTP packets using NTS (Network Time Security). To decrypt packets,
the NTS-KE (Network Time Security Key Establishment Protocol) packets need to be present,
alongside the TLS client and exporter secrets.

Wireshark’s ability to decrypt MACsec packets has been expanded to either
use the SAK unwrapped by the MKA dissector, or the PSK configured in the
MACsec dissector.

The TCP Stream Graph axes now use units with SI prefixes. wsbuglink:20197[]

Display filter functions `float` and `double` are added to allow explicitly
converting field types like integers and times to single and double precision
floats.

A menu:Edit[Copy,as HTML] menu item has been added, along with associated context menu items and a keyboard shortcut.

The Conversations and Endpoints dialogs have an option to display byte counts and bit rates in exact counts instead of human-readable numbers with SI units.

The color scheme can be set to Light or Dark mode independently of the current OS default on Windows and macOS, if Wireshark is built with Qt 6.8 or later as the official installers are. wsbuglink:19328[]

== 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
https://www.wireshark.org/download.html[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 menu: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
https://ask.wireshark.org/[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 https://lists.wireshark.org/lists/[the mailing list site].

Bugs and feature requests can be reported on
https://gitlab.com/wireshark/wireshark/-/issues[the issue tracker].

You can learn protocol analysis and meet Wireshark’s developers at
https://sharkfest.wireshark.org[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 https://wiresharkfoundation.org[wiresharkfoundation.org].

== Frequently Asked Questions

A complete FAQ is available on the
https://www.wireshark.org/faq.html[Wireshark web site].
