Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-07-08T20:50:40 wireshark: Wireshark: Denial of Service via multiple protocol dissector infinite loops 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CWE-835

Multiple protocol dissector infinite loops in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allow denial of service

A flaw was found in Wireshark. A local user could trigger multiple protocol dissector infinite loops by providing specially crafted network traffic for analysis. This could lead to a Denial of Service (DoS) condition, making the application unresponsive.

This Moderate impact flaw in Wireshark allows a local attacker to trigger multiple protocol dissector infinite loops, leading to a denial of service. Exploitation requires a local user to open and analyze specially crafted network traffic, limiting the attack vector to interactive use cases rather than automated or remote exploitation. To mitigate this issue, users should avoid analyzing untrusted or suspicious network capture files with Wireshark. Exercise caution when opening network traffic from unknown sources to prevent triggering the denial of service condition. Red Hat Enterprise Linux 10 Fix deferred wireshark Red Hat Enterprise Linux 6 Out of support scope wireshark Red Hat Enterprise Linux 7 Out of support scope wireshark Red Hat Enterprise Linux 8 Fix deferred wireshark Red Hat Enterprise Linux 9 Fix deferred wireshark https://www.cve.org/CVERecord?id=CVE-2026-15163 https://nvd.nist.gov/vuln/detail/CVE-2026-15163 https://gitlab.com/wireshark/wireshark/-/work_items/21275 https://gitlab.com/wireshark/wireshark/-/work_items/21277 https://gitlab.com/wireshark/wireshark/-/work_items/21330 https://gitlab.com/wireshark/wireshark/-/work_items/21383 https://www.wireshark.org/security/wnpa-sec-2026-61.html