CVE-2026-5405

HIGH

Heap-based Buffer Overflow in Wireshark

Title source: cna
STIX 2.1

Description

RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

References (3)

Core 3
Core References
Exploit, Issue Tracking, Third Party Advisory
https://gitlab.com/wireshark/wireshark/-/work_items/21105
Issue Tracking, Permissions Required issue-tracking permissions-required
GitLab Issue #21105
https://gitlab.com/wireshark/wireshark/-/issues/21105

Scores

CVSS v3 7.8
EPSS 0.0015
EPSS Percentile 4.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-122 CWE-787
Status published
Products (3)
wireshark/wireshark 4.4.0 - 4.4.15
Wireshark Foundation/Wireshark 4.4.0 - 4.4.15
Wireshark Foundation/Wireshark 4.6.0 - 4.6.5
Published May 01, 2026
Tracked Since May 01, 2026