Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-04-30T05:40:24 wireshark: Wireshark: Denial of Service via FC-SWILS 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 this vulnerability by crafting and sending malicious FC-SWILS protocol data. This would cause the FC-SWILS protocol dissector to crash, leading to a denial of service (DoS) for the affected system.

To mitigate this issue, avoid opening untrusted capture files or analyzing untrusted live network traffic with Wireshark. Running Wireshark in a sandboxed environment, such as a container or virtual machine, can further limit the impact of processing malicious data. 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-2026-5406 https://nvd.nist.gov/vuln/detail/CVE-2026-5406 https://gitlab.com/wireshark/wireshark/-/issues/21070 https://www.wireshark.org/security/wnpa-sec-2026-10.html