High severity · published Oct 1, 2025
CVE-2025-59147
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community
7.5
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
Suricata · Oisf
before 7.0.12; 8.0.0; 8.0.0; 8.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59147
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59147
Release Notes
https://forum.suricata.io/t/suricata-8-0-1-and-7-0-12-released/6018
Patch
https://github.com/OISF/suricata/commit/be6315dba0d9101b11d16e9dacfe2822b3792f1b
Patch
https://github.com/OISF/suricata/commit/e91b03c90385db15e21cf1a0e85b921bf92b039e
Issue Tracking
https://github.com/OISF/suricata/security/advisories/GHSA-v8hv-6v7x-4c2r
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