OISF has 35 CVEs on record. Disclosure cadence is accelerating: 35 in the last 90 days against 0 in the 90 before. The busiest recent month was September 2026 with 35. The median CVSS is 7.5 (high), with 3 rated critical. None have a confirmed exploitation report. The dominant weakness classes are CWE-400 (9) and CWE-770 (7).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.5
- Publish → KEV
- —
- Last 90 days
- 35 prev 0
Worst active — by depth score
CVE-2026-45769High· 7.5Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine54CVE-2026-45747High· 7.5Suricata lua/tls: null dereference in TlsGetCertInfo53CVE-2026-94084Critical· 9.4Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform.52CVE-2026-94083Critical· 9.4Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade)52CVE-2026-45764Critical· 9.1Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine50
OISF vulnerabilities
CVEs affecting OISF, newest first. Open any entry for full detail, references, and exploit status.
35 CVEsRSS
CVE-2026-45766High· 7.5Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, certain NFS parser state structures were insufficiently bounded. Crafted NFS traffi…
CVE-2026-45759High· 7.5Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata could repeatedly perform expensive parsing of large HTTP `Content-Disposit…
CVE-2026-45769High· 7.5PoCSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5,IKEv2 parser state could grow without bounds while storing client transforms. Repeat…
CVE-2026-45770High· 7.5Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, a Lua rule that registers too many flow variables can corrupt Lua…
CVE-2026-45747High· 7.5PoCSuricata lua/tls: null dereference in TlsGetCertInfo
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.16, the Lua TLS certificate information helper could dereference NULL certificate fields when a Lu…