{
  "fix": "KB5002873",
  "url": "https://patchblox.com/security/fix/microsoft/kb5002873",
  "summary": "KB5002873, released June 9, 2026, fixes 31 CVEs in Microsoft SharePoint Server Subscription Edition. One of them is being exploited (CVE-2026-58644); 1 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "June 2026 security update",
  "released": "2026-06-09T07:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2026-58644, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 31,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.33544,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5002873",
  "appliesTo": [
    {
      "product": "Microsoft SharePoint Server Subscription Edition",
      "productUrl": "https://patchblox.com/security/product/microsoft/microsoft-sharepoint-server-subscription-edition",
      "fixedVersion": "",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-58644",
      "url": "https://patchblox.com/security/cve/CVE-2026-58644",
      "title": "Microsoft SharePoint Remote Code Execution Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Remote Code Execution",
      "priority": "Patch now",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.15873,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45481",
      "url": "https://patchblox.com/security/cve/CVE-2026-45481",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.3,
      "epss": 0.00632,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47634",
      "url": "https://patchblox.com/security/cve/CVE-2026-47634",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.3,
      "epss": 0.00514,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45456",
      "url": "https://patchblox.com/security/cve/CVE-2026-45456",
      "title": "Microsoft Outlook and Word Remote Code Execution Vulnerability",
      "component": "Microsoft Office",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.4,
      "epss": 0.00438,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45458",
      "url": "https://patchblox.com/security/cve/CVE-2026-45458",
      "title": "Microsoft Outlook and Word Remote Code Execution Vulnerability",
      "component": "Microsoft Office",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.4,
      "epss": 0.00438,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45484",
      "url": "https://patchblox.com/security/cve/CVE-2026-45484",
      "title": "Microsoft SharePoint Elevation of Privilege Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.33544,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47298",
      "url": "https://patchblox.com/security/cve/CVE-2026-47298",
      "title": "Microsoft SharePoint Server Remote Code Execution Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8,
      "epss": 0.00615,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-44819",
      "url": "https://patchblox.com/security/cve/CVE-2026-44819",
      "title": "Microsoft Office Remote Code Execution Vulnerability",
      "component": "Microsoft Office",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00455,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-44824",
      "url": "https://patchblox.com/security/cve/CVE-2026-44824",
      "title": "Microsoft Office Remote Code Execution Vulnerability",
      "component": "Microsoft Office",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00455,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45471",
      "url": "https://patchblox.com/security/cve/CVE-2026-45471",
      "title": "Microsoft Word Remote Code Execution Vulnerability",
      "component": "Microsoft Office Word",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00455,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45475",
      "url": "https://patchblox.com/security/cve/CVE-2026-45475",
      "title": "Microsoft Office Remote Code Execution Vulnerability",
      "component": "Microsoft Office",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00455,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45454",
      "url": "https://patchblox.com/security/cve/CVE-2026-45454",
      "title": "Microsoft SharePoint Remote Code Execution Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Remote Code Execution",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.0163,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-48560",
      "url": "https://patchblox.com/security/cve/CVE-2026-48560",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.00862,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-33113",
      "url": "https://patchblox.com/security/cve/CVE-2026-33113",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.0048,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45453",
      "url": "https://patchblox.com/security/cve/CVE-2026-45453",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.00469,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45464",
      "url": "https://patchblox.com/security/cve/CVE-2026-45464",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.00469,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45465",
      "url": "https://patchblox.com/security/cve/CVE-2026-45465",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.00469,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47636",
      "url": "https://patchblox.com/security/cve/CVE-2026-47636",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.00469,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47639",
      "url": "https://patchblox.com/security/cve/CVE-2026-47639",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.4,
      "epss": 0.00469,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-44821",
      "url": "https://patchblox.com/security/cve/CVE-2026-44821",
      "title": "Microsoft Office Information Disclosure Vulnerability",
      "component": "Microsoft Office",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00465,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45462",
      "url": "https://patchblox.com/security/cve/CVE-2026-45462",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45467",
      "url": "https://patchblox.com/security/cve/CVE-2026-45467",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45468",
      "url": "https://patchblox.com/security/cve/CVE-2026-45468",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45479",
      "url": "https://patchblox.com/security/cve/CVE-2026-45479",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45483",
      "url": "https://patchblox.com/security/cve/CVE-2026-45483",
      "title": "Microsoft Office Project Server Spoofing Vulnerability",
      "component": "Microsoft Office Project",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47637",
      "url": "https://patchblox.com/security/cve/CVE-2026-47637",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47638",
      "url": "https://patchblox.com/security/cve/CVE-2026-47638",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47640",
      "url": "https://patchblox.com/security/cve/CVE-2026-47640",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-47641",
      "url": "https://patchblox.com/security/cve/CVE-2026-47641",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-48562",
      "url": "https://patchblox.com/security/cve/CVE-2026-48562",
      "title": "Microsoft SharePoint Server Spoofing Vulnerability",
      "component": "Microsoft Office SharePoint",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-45485",
      "url": "https://patchblox.com/security/cve/CVE-2026-45485",
      "title": "Microsoft Office Information Disclosure Vulnerability",
      "component": "Microsoft Office",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 3.3,
      "epss": 0.00437,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}