CVE-2025-59147

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.

The following products are affected by CVE-2025-59147 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-59147.

URL	Resource
https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
https://github.com/OISF/suricata/commit/be6315dba0d9101b11d16e9dacfe2822b3792f1b
https://github.com/OISF/suricata/commit/e91b03c90385db15e21cf1a0e85b921bf92b039e
https://github.com/OISF/suricata/security/advisories/GHSA-v8hv-6v7x-4c2r