Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments.
https://redmine.openinfosecfoundation.org/issues/4569
https://github.com/OISF/suricata/releases
https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942
Source: Mitre, NVD
Published: 2021-11-19
Updated: 2021-11-23
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00185