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

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.7%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-122
Status published
Products (2)
Wireshark Foundation/Wireshark 4.4.0 - 4.4.15
Wireshark Foundation/Wireshark 4.6.0 - 4.6.5
Published Apr 30, 2026
Tracked Since May 01, 2026