65
CVEs
3
Critical
46
High
0
KEV
5
PoC
4
Unpatched C/H
93.8%
Patch Rate
0.6%
Avg EPSS
Severity Breakdown
CRITICAL
3
HIGH
46
MEDIUM
14
LOW
2
Monthly CVE Trend
Affected Products (7)
Top Risky CVEs
| CVE | Summary | Severity | CVSS | EPSS | Priority | Signals |
|---|---|---|---|---|---|---|
| CVE-2018-1000167 | OISF suricata-update version 1.0.0a1 contains an Insecure Deserialization vulnerability in the insecure yaml.load-Function as used in the following files: config.py:136, config.py:142, sources.py:99. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available. | HIGH | 7.8 | 4.2% | 59 |
PoC
|
| CVE-2025-59150 | Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Version 8.0.0's usage of the tls.subjectaltname keyword can lead to a segmentation fault when the decoded subjectaltname contains a NULL byte. This issue is fixed in version 8.0.1. To workaround this issue, disable rules using the tls.subjectaltname keyword. | HIGH | 7.5 | 0.2% | 58 |
PoC
|
| CVE-2019-1010279 | Open Information Security Foundation Suricata prior to version 4.1.3 is affected by: Denial of Service - TCP/HTTP detection bypass. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. | HIGH | 7.5 | 1.5% | 58 |
PoC
|
| CVE-2021-45098 | An issue was discovered in Suricata before 6.0.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. | HIGH | 7.5 | 1.8% | 58 |
PoC
|
| CVE-2024-23837 | LibHTP is a security-aware parser for the HTTP protocol. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. | HIGH | 7.5 | 1.2% | 58 |
PoC
|
| CVE-2021-37592 | Suricata before 5.0.8 and 6.x before 6.0.4 allows TCP evasion via a client with a crafted TCP/IP stack that can send a certain sequence of segments. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available. | CRITICAL | 9.8 | 1.6% | 49 |
No patch
|
| CVE-2023-35853 | In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Code Injection vulnerability could allow attackers to inject and execute arbitrary code within the application. | CRITICAL | 9.8 | 1.0% | 49 |
|
| CVE-2026-45764 | Denial of service in Suricata IDS/IPS/NSM engine (OISF) affects all versions prior to 7.0.16 and 8.0.5, where a protocol change during HTTP/2 traffic processing triggers a type confusion (CWE-843). Crafted network traffic can crash the Suricata process, disabling network intrusion detection/prevention. No public exploit is identified at time of analysis, and the flaw is not in CISA KEV; the fix ships in 7.0.16 and 8.0.5. | CRITICAL | 9.1 | 0.4% | 46 |
|
| CVE-2024-23839 | Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application. | HIGH | 8.1 | 0.8% | 40 |
|
| CVE-2026-45769 | Uncontrolled memory growth in Suricata's IKEv2 application-layer parser allows remote unauthenticated attackers to exhaust system memory by sending repeated crafted UDP packets, potentially disabling the IDS/IPS/NSM engine entirely. All Suricata releases prior to 7.0.16 and 8.0.5 are affected; the parser accumulates client transform state without any upper bound, making it trivially exploitable from the network. No public exploit code has been identified at time of analysis, but the network-accessible, zero-authentication attack surface makes this a credible denial-of-service risk in any deployment where IKE parsing is active. | HIGH | 7.5 | 1.2% | 39 |
|
| CVE-2015-0928 | libhtp 0.5.15 allows remote attackers to cause a denial of service (NULL pointer dereference). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available. | HIGH | 7.5 | 0.8% | 38 |
No patch
|
| CVE-2026-45768 | Uncontrolled memory growth in Suricata's LDAP application-layer parser allows unauthenticated remote attackers to exhaust host memory by sending crafted LDAP traffic over UDP, resulting in denial of service. Affected versions are 8.0.0 through 8.0.4; the flaw does not extend to the 7.x release line based on the stated version range. The practical consequence is that a successful attack disables Suricata's IDS/IPS inspection capability, creating a monitoring blind spot on the protected network segment. No public exploit code or active exploitation has been identified; a vendor-released patch (8.0.5) is available. | HIGH | 7.5 | 0.5% | 38 |
|
| CVE-2026-45762 | Remote unauthenticated denial of service in Suricata's IP defragmentation engine allows an attacker to crash the sensor by sending crafted mixed IPv4/IPv6 fragmented traffic. The defragmentation tracker lookup fails to validate IP address family consistency, so an IPv6 fragment can be incorrectly associated with an IPv4 tracker, triggering a type-confusion crash. All Suricata deployments running versions prior to 7.0.16 (stable) or 8.0.5 (latest) are affected; no public exploit has been identified at time of analysis. | HIGH | 7.5 | 0.4% | 38 |
|
| CVE-2026-45765 | Uncontrolled memory consumption in Suricata's DNP3 reassembly engine allows a remote unauthenticated attacker to exhaust host memory by sending crafted DNP3 traffic, causing denial of service. Versions prior to 7.0.16 and 8.0.5 fail to enforce sufficient parser-level bounds during DNP3 stream reassembly, meaning unbounded buffering is possible. The attack surface is significantly constrained because DNP3 parsing is not enabled by default, limiting realistic exposure to Suricata deployments actively monitoring OT/ICS network segments. No public exploit identified at time of analysis. | HIGH | 7.5 | 0.4% | 38 |
|
| CVE-2026-45766 | Memory exhaustion in Suricata's NFS application-layer parser allows remote unauthenticated attackers to crash or severely degrade the IDS/IPS/NSM engine by sending crafted NFS traffic. Affected versions span all releases prior to 7.0.16 and 8.0.5, covering both the stable and current release branches maintained by OISF. No active exploitation has been confirmed, but the zero-prerequisite network attack path and the security-critical role of Suricata in detection pipelines make this operationally significant. | HIGH | 7.5 | 0.4% | 38 |
|