Dissection engine zlib decompression 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': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 30 Apr 2026 09:15:00 +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 Dissection engine zlib decompression 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: 2026-04-30T12:31:36.338Z

Reserved: 2026-04-17T15:06:27.695Z

Link: CVE-2026-6535

cve-icon Vulnrichment

Updated: 2026-04-30T12:31:33.629Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-04-30T07:16:40.870

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

Link: CVE-2026-6535

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses