{
  "fix": "KB5021126",
  "url": "https://patchblox.com/security/fix/microsoft/kb5021126",
  "summary": "KB5021126, released February 14, 2023, fixes 6 CVEs in Microsoft SQL Server 2017 for x64-based Systems (CU 31). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "February 2023 security update",
  "released": "2023-02-14T14:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2023-21713, high severity",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0177,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5021126",
  "appliesTo": [
    {
      "product": "Microsoft SQL Server 2017 for x64-based Systems (CU 31)",
      "productUrl": "https://patchblox.com/security/product/microsoft/microsoft-sql-server-2017-for-x64-based-systems-cu-31",
      "fixedVersion": "",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-21713",
      "url": "https://patchblox.com/security/cve/CVE-2023-21713",
      "title": "Microsoft SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.0177,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-21705",
      "url": "https://patchblox.com/security/cve/CVE-2023-21705",
      "title": "Microsoft SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01123,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-23384",
      "url": "https://patchblox.com/security/cve/CVE-2023-23384",
      "title": "Microsoft SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.3,
      "epss": 0.00871,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-21718",
      "url": "https://patchblox.com/security/cve/CVE-2023-21718",
      "title": "Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00746,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-21528",
      "url": "https://patchblox.com/security/cve/CVE-2023-21528",
      "title": "Microsoft SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00397,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-21704",
      "url": "https://patchblox.com/security/cve/CVE-2023-21704",
      "title": "Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability",
      "component": "SQL Server",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00397,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}