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5.5 Medium

CVE-2026-6867 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

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

Affected products and versions

Product	Affected versions	Fixed in
Wireshark 4.6	4.6.0 → < 4.6.5	4.6.5
Wireshark 4.4	4.4.0 → < 4.4.15	4.4.15

References

www.wireshark.org www.wireshark.org
gitlab.com gitlab.com

Timeline

Published April 30, 2026
Last modified April 30, 2026

The 185 CVEs of Wireshark →

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