CVE-2026-5403

HIGH

Heap-based Buffer Overflow in Wireshark

Title source: cna
STIX 2.1

Description

SBC codec 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 (5)

Core 5

Scores

CVSS v3 7.8
EPSS 0.0016
EPSS Percentile 5.7%
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