{"schema_version": "1.7.0", "id": "RLSA-2026:84721", "modified": "2026-10-20T12:15:01.357461Z", "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"], "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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "wireshark", "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"}}]}], "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"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:84721"}}