# Wireshark v4.4.18

- Product: Wireshark (https://whatsnew.fyi/product/wireshark)
- Vendor: Wireshark Foundation
- Date: 2026-08-12
- Version: v4.4.18
- Original notes: https://gitlab.com/wireshark/wireshark/-/tags/v4.4.18
- Permalink: https://whatsnew.fyi/product/wireshark/releases/v4.4.18
- Labels: Platforms: Desktop

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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Tag: v4.4.18

- **security** — Fix sharkd crash (wnpa-sec-2026-64)
- **security** — Fix sharkd crash (wnpa-sec-2026-65)
- **security** — Fix UMTS FP protocol dissector crash (wnpa-sec-2026-66)
- **security** — Fix RDP protocol dissector crash (wnpa-sec-2026-67)
- **security** — Fix dissection engine reassembly crash (wnpa-sec-2026-69)
- **security** — Fix BUSMASTER file parser abnormal exit (wnpa-sec-2026-70)
- **security** — Fix Tektronix K12xx file parser crash (wnpa-sec-2026-71)
- **security** — Fix ERF file parser crash (wnpa-sec-2026-72)
- **security** — Fix Bluetooth Attribute Protocol dissector crash (wnpa-sec-2026-73)
- **security** — Fix Catapult DCT2000 file parser crash (wnpa-sec-2026-74)
- **security** — Fix C12.22 protocol dissector crash (wnpa-sec-2026-75)
- **security** — Fix CMS protocol dissector crash (wnpa-sec-2026-76)
- **security** — Fix H.245 protocol dissector crash (wnpa-sec-2026-77)
- **security** — Fix Kerberos protocol dissector crash (wnpa-sec-2026-78)
- **security** — Fix Bluetooth HFP Profile protocol dissector crash (wnpa-sec-2026-79)
- **security** — Fix Bluetooth BR/EDR FHS protocol dissector crash (wnpa-sec-2026-80)
- **security** — Fix 3gpp phone log file parser crash (wnpa-sec-2026-81)
- **security** — Fix CMS protocol dissector crash (wnpa-sec-2026-83)
- **security** — Fix pcapng file parser crash (wnpa-sec-2026-84)
- **security** — Fix SSH protocol dissector crash (wnpa-sec-2026-85)

#### Wireshark 4.4.18 Release Notes
##### 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.
If you use Wireshark professionally or you just want to learn more about protocol analysis, you should join us at SharkFest, the Wireshark developer and user conference.
You can also become a Wireshark Certified Analyst! Official Wireshark training and certification are available from the Wireshark Foundation.
##### What’s New
###### Bug Fixes
The following vulnerabilities have been fixed:
- wnpa-sec-2026-64 sharkd crash. Issue 21395.
- wnpa-sec-2026-65 sharkd crash. Issue 21399.
- wnpa-sec-2026-66 UMTS FP protocol dissector crash. Issue 21413.
- wnpa-sec-2026-67 RDP protocol dissector crash. Issue 21396.
- wnpa-sec-2026-69 Dissection engine reassembly crash. Issue 21423.
- wnpa-sec-2026-70 BUSMASTER file parser abnormal exit. Issue 21435.
- wnpa-sec-2026-71 Tektronix K12xx file parser crash. Issue 21414.
- wnpa-sec-2026-72 ERF file parser crash. Issue 21415.
- wnpa-sec-2026-73 Bluetooth Attribute Protocol dissector crash. Issue 21424.
- wnpa-sec-2026-74 Catapult DCT2000 file parser crash. Issue 21427.
- wnpa-sec-2026-75 C12.22 protocol dissector crash. Issue 21439.
- wnpa-sec-2026-76 CMS protocol dissector crash. Issue 21446.
- wnpa-sec-2026-77 H.245 protocol dissector crash. Issue 21447.
- wnpa-sec-2026-78 Kerberos protocol dissector crash. Issue 21449.
- wnpa-sec-2026-79 Bluetooth HFP Profile protocol dissector crash. Issue 21451.
- wnpa-sec-2026-80 Bluetooth BR/EDR FHS protocol dissector crash. Issue 21452.
- wnpa-sec-2026-81 3gpp phone log file parser crash. Issue 21454.
- wnpa-sec-2026-83 CMS protocol dissector crash. Issue 21457, Issue 21458.
- wnpa-sec-2026-84 Pcapng file parser crash. Issue 21460.
- wnpa-sec-2026-85 SSH protocol dissector crash. Issue 21465.
- wnpa-sec-2026-86 ESS protocol dissector crash. Issue 21467.
- wnpa-sec-2026-87 X.509IF protocol dissector crash. Issue 21469. CVE-2026-xxx.
- wnpa-sec-2026-88 RRC protocol dissector crash. Issue 21478.
- wnpa-sec-2026-89 C12.22 protocol dissector crash. Issue 21480.
- wnpa-sec-2026-91 Bluetooth AVRCP Profile protocol dissector crash. Issue 21488.
The following bugs have been fixed:
- Wireshark Version 4.6.6 - File Capture Properties is excessively slow and hangs Wireshark on Windows. Issue 21337.
- Wireshark misdecodes S-NSSAI location validity information IE (5G NAS) Issue 21411.
- Wireshark misdecodes NSAG information IE (5G NAS) Issue 21412.
- Fuzz job UTF-8 encoding issue: fuzz-2026-07-17-15393056954.pcap. Issue 21419.
- Wireshark misdecodes UE security capability IE (5G NAS) Issue 21431.
- Wireshark misdecodes Registration wait range IE (5G NAS) Issue 21432.
- Wireshark misdecodes Extended CAG information IE (5G NAS) Issue 21433.
- Stack buffer overflow in K12/RF5 writer. Issue 21436.
- packet-knxip: Secure Wrapper size-offset causes NULL deref / SEGV when decrypting. Issue 21444.
- wiretap/rtpdump: swapped caplen/len on truncated samples. Issue 21445.
- Sniffer REC_HEADER2 error path over-reads stack buffer. Issue 21461.
- Deep NetLog JSON nesting exhausts the native stack. Issue 21462.
- androiddump signed btsnoop length causes global out-of-bounds read. Issue 21464.
- Wireshark misdecodes SOR transparent container IE (5G NAS) Issue 21472.
- Unbounded Daintree timestamp fraction causes signed integer overflow. Issue 21473.
- Wireshark misdecodes SOR-CMCI of SOR transparent container IE (5G NAS) Issue 21477.
- Wireshark misdecodes Service level AA container (5GSM NAS) Issue 21479.
###### New and Updated Features
###### New Protocol Support
There are no new protocols in

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