CVE-2026-5404 — MEDIUM (4.7)

Q: What is CVE-2026-5404?

CVE-2026-5404 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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

Q: How severe is CVE-2026-5404?

CVE-2026-5404 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-5404?

Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark.

Vulnerability Description

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

CVSS Score

4.7

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wireshark	Wireshark	>= 4.4.0, < 4.4.15

Related Weaknesses (CWE)

CWE-120

References

https://gitlab.com/wireshark/wireshark/-/issues/21094ExploitIssue TrackingThird Party Advisory
https://www.wireshark.org/security/wnpa-sec-2026-15.htmlVendor Advisory

FAQ

What is CVE-2026-5404?

CVE-2026-5404 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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

How severe is CVE-2026-5404?

CVE-2026-5404 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-5404?

Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark.