CVE-2026-6521

medium

Description

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

References

https://www.wireshark.org/security/wnpa-sec-2026-39.html

https://gitlab.com/wireshark/wireshark/-/work_items/21188

https://gitlab.com/wireshark/wireshark/-/work_items/21182

Details

Source: Mitre, NVD

Published: 2026-04-30

Updated: 2026-04-30

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium