CVE-2026-6521 MEDIUM

CVE-2026-6521: Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark

Vendor Wireshark Foundation
Product Wireshark
Weakness CWE-835
Published April 30, 2026
Last update April 30, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

OpenFlow v5 protocol dissector infinite loops in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

Key dates

02Disclosure timeline

April 30, 2026 CVE published
April 30, 2026 Record updated