CVE-2026-6867 — MEDIUM (5.5)

Q: What is CVE-2026-6867?

CVE-2026-6867 is a vulnerability with a CVSS score of 5.5 (MEDIUM). SMB2 protocol dissector 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-2026-6867?

CVE-2026-6867 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-6867?

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

Vulnerability Description

SMB2 protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wireshark	Wireshark	>= 4.4.0, <= 4.4.14

Related Weaknesses (CWE)

CWE-1325

References

https://gitlab.com/wireshark/wireshark/-/work_items/21191ExploitIssue Tracking
https://www.wireshark.org/security/wnpa-sec-2026-45.htmlVendor Advisory

FAQ

What is CVE-2026-6867?

CVE-2026-6867 is a vulnerability with a CVSS score of 5.5 (MEDIUM). SMB2 protocol dissector 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-2026-6867?

CVE-2026-6867 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-6867?

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