Wireshark, the world’s leading network protocol analyzer, has released version 4.6.2 with critical security updates and important bug fixes.
The update addresses compatibility issues, resolves multiple vulnerability concerns, and enhances protocol support for enterprise users and network engineers worldwide.
Security Vulnerabilities Patched
The latest release fixes two critical security vulnerabilities that could have impacted network analysis operations.
The HTTP3 dissector crash vulnerability (wnpa-sec-2025-07) has been resolved, preventing potential denial-of-service conditions during HTTP/3 traffic analysis.
Additionally, the MEGACO dissector infinite loop issue (wnpa-sec-2025-08) has been addressed, which could have caused the application to hang when processing MEGACO protocol traffic.
These security patches are essential for organizations relying on Wireshark for network troubleshooting and protocol analysis in production environments.
Version 4.6.2 resolves a significant API/ABI compatibility issue introduced in the previous 4.6.1 release.
This fix restores compatibility with plugins built for Wireshark 4.6.0, eliminating disruptions for users with custom protocol dissectors and extensions.
The release also addresses a stack buffer overflow vulnerability in the wiretap BER decoder component, which could have created security risks when analyzing certain file formats.
The Omnipeek file format support has been restored after becoming non-functional in version 4.6.1, enabling users to continue working with archived network captures from Omnipeek hardware analyzers.
Wireshark 4.6.2 includes updated support for multiple network protocols, including ATM PW, COSEM, COTP, DECT NR+, DMP, GTP, HTTP3, IEEE 802.15.4, ISOBUS, MAC-LTE, MAUSB, MEGACO, OsmoTRXD, PTP, RLC, SAPDIAG, and SMTP.
These updates improve the dissector’s ability to accurately analyze and troubleshoot network traffic across various telecommunications and industrial protocols.
The Windows installer has been updated to include the Visual C++ Redistributable version 14.44.35112, ensuring compatibility with current Windows systems.
Support for Peektagged capture file format has also been added, expanding file compatibility options for network analysts.
Network security professionals and infrastructure teams should prioritize updating to Wireshark 4.6.2 to ensure security vulnerability protection and restore full compatibility with existing plugin ecosystems.
The release balances security improvements with stability enhancements, making it suitable for immediate deployment in enterprise environments.
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