CVE-2026-6535
MEDIUMImproperly Controlled Sequential Memory Allocation in Wireshark
Title source: cnaDescription
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
References (3)
Core 3
Core References
Issue Tracking, Permissions Required issue-tracking
permissions-required
GitLab Issue #21098
https://gitlab.com/wireshark/wireshark/-/issues/21098
Issue Tracking, Permissions Required issue-tracking
permissions-required
GitLab Issue #21097
https://gitlab.com/wireshark/wireshark/-/issues/21097
Scores
CVSS v3
5.5
EPSS
0.0001
EPSS Percentile
1.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1325
Status
published
Products (3)
wireshark/wireshark
4.4.0 - 4.4.14
Wireshark Foundation/Wireshark
4.4.0 - 4.4.15
Wireshark Foundation/Wireshark
4.6.0 - 4.6.5
Published
Apr 30, 2026
Tracked Since
Apr 30, 2026