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Vulnerability record · CVE-2025-59147 · published 1 October 2025

CVE-2025-59147: Oisf suricata vulnerability

Oisf · Suricata

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.

7.5 CVSS 3.1 High EPSS 0.37% · top 71.5% CWE-358 · CWE-358
7.5CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018 Release Notes
https://github.com/OISF/suricata/commit/be6315dba0d9101b11d16e9dacfe2822b3792f1b Patch
https://github.com/OISF/suricata/commit/e91b03c90385db15e21cf1a0e85b921bf92b039e Patch
https://github.com/OISF/suricata/security/advisories/GHSA-v8hv-6v7x-4c2r Issue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-59147), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.