FKIE_CVE-2026-63450

Vulnerability from fkie_nvd - Published: 2026-09-18 21:17 - Updated: 2026-09-23 20:17
Severity
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
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 negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6.
References
security-advisories@github.comhttps://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18
security-advisories@github.comhttps://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc
security-advisories@github.comhttps://github.com/OISF/suricata/pull/15704
security-advisories@github.comhttps://github.com/OISF/suricata/releases/tag/suricata-8.0.6
security-advisories@github.comhttps://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr
security-advisories@github.comhttps://redmine.openinfosecfoundation.org/issues/8659
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "suricata",
          "vendor": "OISF",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.0.6"
            }
          ]
        }
      ],
      "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 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6."
    }
  ],
  "id": "CVE-2026-63450",
  "lastModified": "2026-09-23T20:17:12.723",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63450",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-23T19:45:24.754319Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-18T21:17:04.370",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/pull/15704"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/releases/tag/suricata-8.0.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgr"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://redmine.openinfosecfoundation.org/issues/8659"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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