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CVE-2026-5404 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-5404

CVE-2026-5404

MEDIUM4.7

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Wireshark

Published Apr 30, 2026

Modified 5 months ago

Fix available

Details

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

Affected Packages

Wireshark

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1703)Windows 10 (1709)Windows 10 (1803)

Fixed in:

4.4.154.6.5

Wireshark x64

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1703)Windows 10 (1709)Windows 10 (1803)

Fixed in:

4.4.154.6.5

wireshark

brew

Fixed in:

4.4.154.6.5

References

WEB

https://gitlab.com/wireshark/wireshark/-/issues/21094

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-5404

WEB

https://www.wireshark.org/security/wnpa-sec-2026-15.html

CVSS Analysis

CVSS v3.1

4.7

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Weakness Type (CWE)

Memory Safety

CWE-120

Classic Buffer Overflow

Ecosystems(30)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1703)Windows 10 (1709)Windows 10 (1803)

Timeline

PublishedApr 30, 2026

ModifiedMay 1, 2026