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Fedora 42: libpcap Medium Memory Corruption CVE-2025

Fedora 42: libpcap Medium Memory Corruption CVE-2025

Linuxsecurity •LinuxSecurity Advisories • January 21, 2026

Libpcap provides a portable framework for low-level network monitoring. Libpcap can provide network statistics collection, security monitoring and network debugging. Since almost every system vendor provides a different interface for packet capture, the libpcap authors created this system-independent API to ease in porting and to alleviate the need for several system-dependent packet capture modules in each application. Install libpcap if you need to do low-level network traffic monitoring on your network. Update Information : New version 1.10.6

Libpcap provides a portable framework for low-level network

monitoring. Libpcap can provide network statistics collection,

security monitoring and network debugging. Since almost every system

vendor provides a different interface for packet capture, the libpcap

authors created this system-independent API to ease in porting and to

alleviate the need for several system-dependent packet capture modules

Install libpcap if you need to do low-level network traffic monitoring

* Mon Jan 5 2026 Michal Ruprich - 14:1.10.6-1 - New version 1.10.6

* Mon Jan 5 2026 Michal Ruprich - 14:1.10.6-1 - New version 1.10.6

[ 1 ] Bug #2426393 - libpcap-1.10.6 is available [ 2 ] Bug #2426630 - CVE-2025-11961 libpcap: libpcap: Memory corruption via malformed MAC-48 address input [fedora-42] [ 3 ] Bug #2426631 - CVE-2025-11961 libpcap: libpcap: Memory corruption via malformed MAC-48 address input [fedora-43]

[ 1 ] Bug #2426393 - libpcap-1.10.6 is available [ 2 ] Bug #2426630 - CVE-2025-11961 libpcap: libpcap: Memory corruption via malformed MAC-48 address input [fedora-42] [ 3 ] Bug #2426631 - CVE-2025-11961 libpcap: libpcap: Memory corruption via malformed MAC-48 address input [fedora-43]

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-1e3425e7ea' at the command line. For more information, refer to the dnf documentation available at

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