SMB2 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

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Advisories

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Fixes

Solution

Upgrade to version 4.6.5 or above


Workaround

No workaround given by the vendor.

History

Thu, 30 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 30 Apr 2026 07:45:00 +0000

Type Values Removed Values Added
First Time appeared Wireshark
Wireshark wireshark
Vendors & Products Wireshark
Wireshark wireshark

Thu, 30 Apr 2026 06:30:00 +0000

Type Values Removed Values Added
Description SMB2 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Title Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Weaknesses CWE-835
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-04-30T12:54:35.494Z

Reserved: 2026-04-02T06:33:36.680Z

Link: CVE-2026-5407

cve-icon Vulnrichment

Updated: 2026-04-30T12:54:31.148Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-04-30T07:16:38.140

Modified: 2026-04-30T15:10:10.430

Link: CVE-2026-5407

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-30T13:45:23Z

Weaknesses