Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 7.0.11 and below, as well as 8.0.0, are vulnerable to detection bypass when crafted traffic sends multiple SYN packets with different sequence numbers within the same flow tuple, which can cause Suricata to fail to pick up the TCP session. In IDS mode this can lead to a detection and logging bypass. In IPS mode this will lead to the flow getting blocked. This issue is fixed in versions 7.0.12 and 8.0.1.
References (4)
Core 4
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/OISF/suricata/security/advisories/GHSA-v8hv-6v7x-4c2r
Patch x_refsource_misc
https://github.com/OISF/suricata/commit/be6315dba0d9101b11d16e9dacfe2822b3792f1b
Patch x_refsource_misc
https://github.com/OISF/suricata/commit/e91b03c90385db15e21cf1a0e85b921bf92b039e
Release Notes x_refsource_misc
https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
Scores
CVSS v3
7.5
EPSS
0.0034
EPSS Percentile
25.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-358
Status
published
Products (2)
oisf/suricata
8.0.0 (3 CPE variants)
oisf/suricata
< 7.0.12
Published
Oct 01, 2025
Tracked Since
Feb 18, 2026