Oisf Suricata vulnerabilities

CVE-2025-59148 [HIGH] CWE-476 CVE-2025-59148: Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Found Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 8.0.0 and below incorrectly handle the entropy keyword when not anchored to a "sticky" buffer, which can lead to a segmentation fault. This issue is fixed in version 8.0.1. To workaround this issue, users can

CVE-2026-31932 [HIGH] CWE-407 CVE-2026-31932: Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, inefficiency in K Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, inefficiency in KRB5 buffering can lead to performance degradation. This issue has been patched in versions 7.0.15 and 8.0.4.

CVE-2026-45768 [HIGH] CWE-400 CVE-2026-45768: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M 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 responses. Because LDAP can be processed over UDP, crafted traffic may cause Suricata to consume excessive memory, potentia

CVE-2026-45762 [HIGH] CWE-843 CVE-2026-45762: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M 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 tracker used the same IP address family as the packet being processed. Under crafted fragmented IPv4/IPv6 traffic, an IPv6

CVE-2026-46387 [HIGH] CWE-409 CVE-2026-46387: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M 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 buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, def

CVE-2019-1010251 [HIGH] CWE-20 CVE-2019-1010251: Open Information Security Foundation Suricata prior to version 4.1.2 is affected by: Denial of Servi Open Information Security Foundation Suricata prior to version 4.1.2 is affected by: Denial of Service - DNS detection bypass. The impact is: An attacker can evade a signature detection with a specialy formed network packet. The component is: app-layer-detect-proto.c, decode.c, decode-teredo.c and decode-ipv6.c (https://github.com/OISF/suricata/pul

CVE-2018-14568 [HIGH] CVE-2018-14568: Suricata before 4 Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).

CVE-2024-38535 [HIGH] CWE-770 CVE-2024-38535: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Suricata can run out of memory when parsing crafted HTTP/2 traffic. Upgrade to 6.0.20 or 7.0.6.

CVE-2024-38534 [HIGH] CWE-770 CVE-2024-38534: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Crafted modbus traffic can lead to unlimited resource accumulation within a flow. Upgrade to 7.0.6. Set a limited stream.reassembly.depth to reduce the issue.

CVE-2024-28870 [HIGH] CWE-770 CVE-2024-28870: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community. When parsing an overly long SSH banner, Suricata can use excessive CPU resources, as well as cause excessive logging volume in alert records. This issue has been patched in versions 6.0.

CVE-2026-31931 [HIGH] CWE-476 CVE-2026-31931: Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, use of th Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, use of the "tls.alpn" rule keyword can cause Suricata to crash with a NULL dereference. This issue has been patched in version 8.0.4.

CVE-2026-31937 [HIGH] CWE-407 CVE-2026-31937: Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffe Suricata is a network IDS, IPS and NSM engine. Prior to version 7.0.15, inefficiency in DCERPC buffering can lead to a performance degradation. This issue has been patched in version 7.0.15.

CVE-2024-47188 [HIGH] CWE-330 CVE-2024-47188: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, missing initialization of the random seed for "thash" leads to byte-range tracking having predictable hash table behavior. This can lead to an attacker forcing lots of data into a single hash bucket, leading to

CVE-2026-45769 [HIGH] CWE-400 CVE-2026-45769: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M 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. Repeated crafted UDP traffic may cause Suricata to consume excessive memory, potentially resulting in denial of service. V

CVE-2019-10052 [HIGH] CVE-2019-10052: An issue was discovered in Suricata 4 An issue was discovered in Suricata 4.1.3. If the network packet does not have the right length, the parser tries to access a part of a DHCP packet. At this point, the Rust environment runs into a panic in parse_clientid_option in the dhcp/parser.rs file.

CVE-2021-35063 [HIGH] CVE-2021-35063: Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion." Suricata before 5.0.7 and 6.x before 6.0.3 has a "critical evasion."

CVE-2024-32663 [HIGH] CWE-400 CVE-2024-32663: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `a

CVE-2024-47522 [HIGH] CWE-617 CVE-2024-47522: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, invalid ALPN in TLS/QUIC traffic when JA4 matching/logging is enabled can lead to Suricata aborting with a panic. This issue has been addressed in 7.0.7. One may disable ja4 as a workaround.

CVE-2024-45795 [HIGH] CWE-617 CVE-2024-45795: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security M Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, rules using datasets with the non-functional / unimplemented "unset" option can trigger an assertion during traffic parsing, leading to denial of service. This issue is addressed in 7.0.7. As a workaround, use o

CVE-2025-64335 [HIGH] CWE-476 CVE-2025-64335: Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Found Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules