Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-04-30T05:33:34 wireshark: Wireshark: Denial of service via SMB2 protocol dissector crash 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CWE-1286

A flaw was found in Wireshark. A remote attacker could exploit a vulnerability in the SMB2 protocol dissector by sending a specially crafted packet. This could lead to a crash of the Wireshark application, resulting in a denial of service (DoS) for the user.

To mitigate this issue, users should avoid opening or analyzing network capture files from untrusted sources. Additionally, when capturing live traffic, ensure the network environment is controlled and trusted to prevent exposure to malicious packets. Red Hat Enterprise Linux 10 Fix deferred wireshark Red Hat Enterprise Linux 6 Fix deferred wireshark Red Hat Enterprise Linux 7 Fix deferred wireshark Red Hat Enterprise Linux 8 Fix deferred wireshark Red Hat Enterprise Linux 9 Fix deferred wireshark https://www.cve.org/CVERecord?id=CVE-2026-6867 https://nvd.nist.gov/vuln/detail/CVE-2026-6867 https://gitlab.com/wireshark/wireshark/-/work_items/21191 https://www.wireshark.org/security/wnpa-sec-2026-45.html