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FKIE_CVE-2026-45769

Vulnerability from fkie_nvd - Published: 2026-09-10 22:16 - Updated: 2026-09-11 18:24
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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. Versions 7.0.16 and 8.0.5 fix the issue. Some workarounds are available. Disable IKE application-layer parsing if it is not needed. Alternatively, use a rule to bypass ike flows after the first packets like `alert ike any any -> any any (sid: 2; flow.pkts_toserver: > 256; bypass; noalert;)`.
References
security-advisories@github.comhttps://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
security-advisories@github.comhttps://github.com/OISF/suricata/security/advisories/GHSA-hg2g-r464-5593
security-advisories@github.comhttps://redmine.openinfosecfoundation.org/issues/8415
134c704f-9b21-4f2e-91b3-4a467353bcc0https://redmine.openinfosecfoundation.org/issues/8415
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "suricata",
          "vendor": "OISF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.0.0, \u003c 8.0.5"
            },
            {
              "status": "affected",
              "version": "\u003c 7.0.16"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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. Versions 7.0.16 and 8.0.5 fix the issue. Some workarounds are available. Disable IKE application-layer parsing if it is not needed. Alternatively, use a rule to bypass ike flows after the first packets like `alert ike any any -\u003e any any (sid: 2; flow.pkts_toserver: \u003e 256; bypass; noalert;)`."
    }
  ],
  "id": "CVE-2026-45769",
  "lastModified": "2026-09-11T18:24:59.400",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45769",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-11T15:55:07.586632Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-10T22:16:56.970",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/security/advisories/GHSA-hg2g-r464-5593"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://redmine.openinfosecfoundation.org/issues/8415"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://redmine.openinfosecfoundation.org/issues/8415"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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