SMB2 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
Source ID Title
Debian DSA Debian DSA DSA-6249-1 wireshark security update
Fixes

Solution

Upgrade to version 4.6.5 or above


Workaround

No workaround given by the vendor.

History

Mon, 04 May 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1286
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 01 May 2026 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*

Thu, 30 Apr 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 30 Apr 2026 09:30:00 +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 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: 2026-04-30T15:20:39.343Z

Reserved: 2026-04-22T16:29:19.048Z

Link: CVE-2026-6867

cve-icon Vulnrichment

Updated: 2026-04-30T14:53:27.500Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-30T07:16:41.350

Modified: 2026-05-01T18:15:20.687

Link: CVE-2026-6867

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-30T05:33:34Z

Links: CVE-2026-6867 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T14:15:47Z

Weaknesses