{
  "fix": "KB5026427",
  "url": "https://patchblox.com/security/fix/microsoft/kb5026427",
  "summary": "KB5026427, released May 9, 2023, fixes 12 CVEs across 4 products. One of them is being exploited (CVE-2023-29336); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "May 2023 security update",
  "released": "2023-05-09T12:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-29336, exploited (CISA KEV)",
  "supported": false,
  "cveCount": 12,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.83885,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5026427",
  "appliesTo": [
    {
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2-server-core-installation",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2",
      "fixedVersion": "",
      "supported": false
    },
    {
      "product": "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2-server-core-installation",
      "fixedVersion": "",
      "supported": false
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-29336",
      "url": "https://patchblox.com/security/cve/CVE-2023-29336",
      "title": "Win32k Elevation of Privilege Vulnerability",
      "component": "Windows Win32K",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.41185,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-29325",
      "url": "https://patchblox.com/security/cve/CVE-2023-29325",
      "title": "Windows OLE Remote Code Execution Vulnerability",
      "component": "Windows OLE",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.83885,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2023-24943",
      "url": "https://patchblox.com/security/cve/CVE-2023-24943",
      "title": "Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability",
      "component": "Windows PGM",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.04682,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-29324",
      "url": "https://patchblox.com/security/cve/CVE-2023-29324",
      "title": "Windows MSHTML Platform Security Feature Bypass Vulnerability",
      "component": "Windows MSHTML Platform",
      "impact": "Security Feature Bypass",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.02842,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28283",
      "url": "https://patchblox.com/security/cve/CVE-2023-28283",
      "title": "Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability",
      "component": "Windows LDAP - Lightweight Directory Access Protocol",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.00973,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-24903",
      "url": "https://patchblox.com/security/cve/CVE-2023-24903",
      "title": "Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability",
      "component": "Windows Secure Socket Tunneling Protocol (SSTP)",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.1,
      "epss": 0.00924,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-24940",
      "url": "https://patchblox.com/security/cve/CVE-2023-24940",
      "title": "Windows Pragmatic General Multicast (PGM) Denial of Service Vulnerability",
      "component": "Windows PGM",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.05166,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-24942",
      "url": "https://patchblox.com/security/cve/CVE-2023-24942",
      "title": "Remote Procedure Call Runtime Denial of Service Vulnerability",
      "component": "Windows Remote Procedure Call Runtime",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01898,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-24904",
      "url": "https://patchblox.com/security/cve/CVE-2023-24904",
      "title": "Windows Installer Elevation of Privilege Vulnerability",
      "component": "Windows Installer",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.1,
      "epss": 0.00622,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-24900",
      "url": "https://patchblox.com/security/cve/CVE-2023-24900",
      "title": "Windows NTLM Security Support Provider Information Disclosure Vulnerability",
      "component": "Windows NTLM",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.9,
      "epss": 0.01232,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-24945",
      "url": "https://patchblox.com/security/cve/CVE-2023-24945",
      "title": "Windows iSCSI Target Service Information Disclosure Vulnerability",
      "component": "Windows iSCSI Target Service",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00555,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-28251",
      "url": "https://patchblox.com/security/cve/CVE-2023-28251",
      "title": "Windows Driver Revocation List Security Feature Bypass Vulnerability",
      "component": "Windows Secure Boot",
      "impact": "Security Feature Bypass",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00451,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}