WebSocket protocol dissector crash 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 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 30 Apr 2026 08:00:00 +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 WebSocket protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Title Improperly Controlled Sequential Memory Allocation in Wireshark
Weaknesses CWE-1325
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: 2026-04-30T12:47:07.534Z

Reserved: 2026-04-22T16:29:28.863Z

Link: CVE-2026-6869

cve-icon Vulnrichment

Updated: 2026-04-30T12:26:08.830Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-04-30T07:16:41.470

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

Link: CVE-2026-6869

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-30T14:00:22Z

Weaknesses