Oisf Suricata vulnerabilities

CVE-2018-10244 [CRITICAL] CWE-190 CVE-2018-10244: Suricata version 4.0.4 incorrectly handles the parsing of an EtherNet/IP PDU. A malformed PDU can ca Suricata version 4.0.4 incorrectly handles the parsing of an EtherNet/IP PDU. A malformed PDU can cause the parsing code to read beyond the allocated data because DecodeENIPPDU in app-layer-enip-commmon.c has an integer overflow during a length check.

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-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-2026-45759 [HIGH] CWE-400 CVE-2026-45759: 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 could repeatedly perform expensive parsing of large HTTP `Content-Disposition` headers during HTTP response body processing. Crafted HTTP traffic could cause excessive CPU usage and denial o

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-2025-29915 [HIGH] CWE-347 CVE-2025-29915: 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. The AF_PACKET defrag option is enabled by default and allows AF_PACKET to re-assemble fragmented packets before reaching Suricata. However the default packet size in Suricata is based on the network interface MTU which leads to Suricat

CVE-2020-19678 [HIGH] CWE-22 CVE-2020-19678: Directory Traversal vulnerability found in Pfsense v.2.1.3 and Pfsense Suricata v.1.4.6 pkg v.1.0.1 Directory Traversal vulnerability found in Pfsense v.2.1.3 and Pfsense Suricata v.1.4.6 pkg v.1.0.1 allows a remote attacker to obtain sensitive information via the file parameter to suricata/suricata_logs_browser.php.

CVE-2026-57227 [HIGH] CWE-400 CVE-2026-57227: 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. 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 to be appended to one transaction without a limit. Crafted MQTT traffic can grow transaction state indefinitely, con

CVE-2026-71418 [HIGH] CWE-407 CVE-2026-71418: 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. 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 frame contents instead of clearing the internal buffer. Multiple DATA frames with the EndOfStream flag set can grow

CVE-2026-22259 [HIGH] CWE-400 CVE-2026-22259: Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, specially crafted traffic can cause Suricata to consume large amounts of memory while parsing DNP3 traffic. This can lead to the process slowing down and running out of memory, potentially leading to it getting killed by the OOM killer. Versions 8.0.3 or 7.0.14 contain

CVE-2026-22258 [HIGH] CWE-400 CVE-2026-22258: Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, crafted DCERPC tr Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, crafted DCERPC traffic can cause Suricata to expand a buffer w/o limits, leading to memory exhaustion and the process getting killed. While reported for DCERPC over UDP, it is believed that DCERPC over TCP and SMB are also vulnerable. DCERPC/TCP in the default configura

CVE-2024-55629 [HIGH] CWE-437 CVE-2024-55629: 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 7.0.8, TCP streams with TCP urgent data (out of band data) can lead to Suricata analyzing data differently than the applications at the TCP endpoints, leading to possible evasions. Suricata 7.0.8 includes options to allow user

CVE-2026-46352 [HIGH] CWE-833 CVE-2026-46352: 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, Suricata's IP defragmentation code could deadlock when processing fragmented traffic containing an encapsulated tunnel protocol whose payload is itself fragmented. Version 8.0.5 con

CVE-2026-45751 [HIGH] CWE-416 CVE-2026-45751: 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 inspection-buffer helper could leave an inspection pointer referencing freed memory after a chained transform caused the backing buffer to be reallocated. The issue is reached during a spe

CVE-2024-55627 [HIGH] CWE-122 CVE-2024-55627: 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 7.0.8, a specially crafted TCP stream can lead to a very large buffer overflow while being zero-filled during initialization with memset due to an unsigned integer underflow. The issue has been addressed in Suricata 7.0.8.

CVE-2024-55605 [HIGH] CWE-400 CVE-2024-55605: 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 7.0.8, a large input buffer to the to_lowercase, to_uppercase, strip_whitespace, compress_whitespace, dotprefix, header_lowercase, strip_pseudo_headers, url_decode, or xor transform can lead to a stack overflow causing Suricat

CVE-2026-63452 [HIGH] CWE-400 CVE-2026-63452: 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. From 8.0.0 until 8.0.6, the HTTP/1 parser limits decompression work per transaction but does not limit how many small brotli compression bombs a single flow can submit. With response-body-decompress-layer-limit enabled, repeated compre

CVE-2026-63447 [HIGH] CWE-407 CVE-2026-63447: 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. From 8.0.5 until 8.0.6, the FTP parser in src/app-layer-ftp.c can continue allocating transactions after app-layer.protocols.ftp.max-tx is reached while processing one large chunk of FTP command data. The oversized transaction list is

CVE-2024-37151 [HIGH] CWE-754 CVE-2024-37151: 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. Mishandling of multiple fragmented packets using the same IP ID value can lead to packet reassembly failure, which can lead to policy bypass. Upgrade to 7.0.6 or 6.0.20. When using af-packet, enable `defrag` to reduce the scope of the

CVE-2026-22260 [HIGH] CWE-674 CVE-2026-22260: Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, Suricata is a network IDS, IPS and NSM engine. Starting in version 8.0.0 and prior to version 8.0.3, Suricata can crash with a stack overflow. Version 8.0.3 patches the issue. As a workaround, use default values for `request-body-limit` and `response-body-limit`.