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. Issue 20881.
The following vulnerabilities have been fixed:
wnpa-sec-2025-07 HTTP3 dissector crash. Issue 20860.
wnpa-sec-2025-08 MEGACO dissector infinite loop. Issue 20884.
The following bugs have been fixed:
ws_base32_decode should be named *_encode ? Issue 20754.
Omnipeek files not working in 4.6.1. Issue 20876.
Stack buffer overflow in wiretap/ber.c (ber_open) Issue 20878.
Plugins incompatibility between 4.6.0 & 4.6.1. Issue 20881.
Fuzz job crash: fuzz-2025-11-30-12266121180.pcap. Issue 20883.
The Windows installers now ship with the Visual C++ Redistributable version 14.44.35112. They previously shipped with 14.40.33807.
There are no new protocols in this release.
ATM PW, COSEM, COTP, DECT NR+, DMP, Fc00, GTP, HTTP3, IEEE 802.15.4, ISIS HELLO, ISOBUS, MAC-LTE, MAUSB, MEGACO, MPEG DSM-CC, OsmoTRXD, PTP, RLC, SAPDIAG, and SMTP
Peektagged
There is no new or updated file format support in this release.