CVE-2026-5404
MEDIUMBuffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Wireshark
Title source: cnaDescription
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
References (2)
Core 2
Core References
Issue Tracking, Permissions Required issue-tracking
permissions-required
GitLab Issue #21094
https://gitlab.com/wireshark/wireshark/-/issues/21094
Scores
CVSS v3
4.7
EPSS
0.0012
EPSS Percentile
2.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/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-120
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