{"id":"RLSA-2026:84721","summary":"Important: wireshark security update","details":"The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network.\n\nSecurity Fix(es):\n\n* wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash (CVE-2026-76886)\n\n* wireshark: Wireshark: Denial of Service via RRC protocol dissector out-of-bounds write (CVE-2026-76880)\n\n* wireshark: Wireshark: Denial of Service vulnerability in ESS protocol dissector (CVE-2026-76919)\n\n* wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash (CVE-2026-76879)\n\n* wireshark: Wireshark: Denial of Service via X.509IF protocol dissector crash (CVE-2026-76928)\n\n* wireshark: Wireshark: Denial of Service vulnerability in H.245 protocol dissector (CVE-2026-76927)\n\n* wireshark: wireshark: Denial of Service via heap-based buffer overflow in SPDY dissector (CVE-2026-95387)\n\n* wireshark: Heap-based Buffer Overflow in Wireshark (CVE-2026-95389)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-10-20T12:15:37.989467797Z","published":"2026-10-20T12:10:14.939262Z","upstream":["CVE-2026-76879","CVE-2026-76880","CVE-2026-76886","CVE-2026-76919","CVE-2026-76927","CVE-2026-76928","CVE-2026-95387","CVE-2026-95389"],"database_specific":{"license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:84721","license":"CC-BY-4.0"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:84721"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2520079"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2520088"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2520093"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2520098"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2520100"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2520103"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543033"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2543037"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:84721"}],"affected":[{"package":{"name":"wireshark","ecosystem":"Rocky Linux:10","purl":"pkg:rpm/rocky-linux/wireshark?distro=rocky-linux-10&epoch=1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.4.2-10.el10_2.8"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:84721.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}