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-2026-94084Critical· 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.
Suricata 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.
CVE-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)
Suricata 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). Thi…
CVE-2026-57228High· 8.2Suricata 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. From 7.0.13 until 7.0.17, the SMTP MIME quoted-printable decoder in src/util-decode-mime.c can read one byte past a hea…
CVE-2026-63449Low· 3.7Suricata 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. From 8.0.0 until 8.0.6, the SIP parser in rust/src/sip/parser.rs stores request and response body lengths in 16-bit fie…
CVE-2026-63450Low· 3.7Suricata 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 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiatio…
CVE-2026-57227High· 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. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages …
CVE-2026-63452High· 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. From 8.0.0 until 8.0.6, the HTTP/1 parser limits decompression work per transaction but does not limit how many small b…
CVE-2026-63451Low· 3.3Suricata 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. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transfor…
CVE-2026-57229Medium· 5.3Suricata 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. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Conten…
CVE-2026-57225Low· 3.3Suricata 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. From 8.0.0 until 8.0.6, src/datasets-context-json.c assumes that a configured JSON or NDJSON dataset value_key resolves…
CVE-2026-63448Medium· 5.9Suricata 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 7.0.17 and 8.0.6, the SMB parser can retain force-completed transactions on flows where Suricata sees payload …
CVE-2026-63446High· 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. From 8.0.0 until 8.0.6, AppLayerParserSetTransactionInspectId() in src/app-layer-parser.c uses an inverted guard and ma…
CVE-2026-63447High· 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. From 8.0.5 until 8.0.6, the FTP parser in src/app-layer-ftp.c can continue allocating transactions after app-layer.prot…
CVE-2026-57223High· 7.0Suricata 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 7.0.17 and 8.0.6, the Windows service installation and parameter-update logic in src/win32-service.c can pass …
CVE-2026-71855Medium· 5.9Suricata 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 7.0.17 and 8.0.6, src/flow-hash.c can treat an IPv4 and IPv6 flow as equal without comparing the IP family whe…
CVE-2026-71418High· 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. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA …
CVE-2026-57226Low· 3.7Suricata 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 7.0.17 and 8.0.6, HTTP SWF decompression with the non-default swf-decompression feature and an unsafe decompre…
CVE-2026-57224Medium· 6.5Suricata 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. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their…
CVE-2026-57222Medium· 5.3Suricata 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 7.0.17 and 8.0.6, crafted IPv4 and IPv6 address pairs can collide in the IPPair hash because src/ippair.c did …
CVE-2026-46352High· 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, Suricata's IP defragmentation code could deadlock when processing…
CVE-2026-46387High· 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's HTTP/2 decompression path could grow the decompressed response-body buff…
CVE-2026-45763Medium· 5.9Suricata 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, when Lua rule execution is enabled, the Lua sandbox memory limit …
CVE-2026-45768High· 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, LDAP transaction state could store an unbounded number of respons…
CVE-2026-45762High· 7.5Suricata defrag: missing address-family check can lead to remote crash
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's IP defragmentation tracker lookup did not verify that an existing tracke…
CVE-2026-45765High· 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, DNP3 reassembly could buffer data without sufficient parser-level bounds. Crafted D…
CVE-2026-45752Medium· 5.9Suricata detect/transform: use-after-free in decompress transforms
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, when certain detection transforms are chained, the decompress tra…
CVE-2026-45751Medium· 5.9Suricata 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's inspection-buffer helper could leave an inspection pointer referencing f…
CVE-2026-45767Medium· 4.4Suricata 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, a malicious rule could potentially overwrite any file on the file system on rule lo…
CVE-2026-45761Low· 3.3Suricata 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, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow w…
CVE-2026-45764Critical· 9.1Suricata 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, a protocol change while processing HTTP/2 traffic could lead to type confusion in S…