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7.5 High

CVE-2025-59147 Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the…

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.

Affected products and versions

Product Affected versions Fixed in
suricata 8.0 8.0.0 → < 8.0.1 8.0.1
suricata 7.0 earliest → < 7.0.12 7.0.12

Other CVEs of suricata

The 86 CVEs of suricata →
CVE-2026-94084 Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use… 9.4 Critical CVE-2026-94083 Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state… 9.4 Critical CVE-2026-71855 Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine 5.9 Medium CVE-2026-71418 Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine 7.5 High
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