CVE-2026-5404 MEDIUM

CVE-2026-5404: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Wireshark

Vendor Wireshark Foundation
Product Wireshark
Weakness CWE-120
Published April 30, 2026
Last update May 1, 2026
View on NVD All CVEs

CVSS base score

4.7/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

K12 RF5 file parser crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

Key dates

02Disclosure timeline

April 30, 2026 CVE published
May 1, 2026 Record updated