{
  "fix": "KB5005099",
  "url": "https://patchblox.com/security/fix/microsoft/kb5005099",
  "summary": "KB5005099, released August 10, 2021, fixes 18 CVEs across 2 products. 2 of them are being exploited (CVE-2021-36942); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "August 2021 security update",
  "released": "2021-08-10T12:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2021-36942, exploited (CISA KEV, ransomware)",
  "supported": true,
  "cveCount": 18,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 1,
  "maxEpss": 0.66023,
  "maxCvss": 9.9,
  "vendorAdvisory": "https://support.microsoft.com/help/5005099",
  "appliesTo": [
    {
      "product": "Windows Server 2012",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2012",
      "fixedVersion": "",
      "supported": true
    },
    {
      "product": "Windows Server 2012 (Server Core installation)",
      "productUrl": "https://patchblox.com/security/product/microsoft/windows-server-2012-server-core-installation",
      "fixedVersion": "",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-36942",
      "url": "https://patchblox.com/security/cve/CVE-2021-36942",
      "title": "Windows LSA Spoofing Vulnerability",
      "component": "Windows NTLM",
      "impact": "Spoofing",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.66023,
      "kev": true,
      "ransomware": true,
      "exploited": true,
      "disclosed": true
    },
    {
      "cveId": "CVE-2021-34484",
      "url": "https://patchblox.com/security/cve/CVE-2021-34484",
      "title": "Windows User Profile Service Elevation of Privilege Vulnerability",
      "component": "Windows User Profile Service",
      "impact": "Elevation of Privilege",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.21827,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26424",
      "url": "https://patchblox.com/security/cve/CVE-2021-26424",
      "title": "Windows TCP/IP Remote Code Execution Vulnerability",
      "component": "Windows TCP/IP",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.9,
      "epss": 0.61133,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-34481",
      "url": "https://patchblox.com/security/cve/CVE-2021-34481",
      "title": "Windows Print Spooler Remote Code Execution Vulnerability",
      "component": "Windows Print Spooler Components",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.47717,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2021-34480",
      "url": "https://patchblox.com/security/cve/CVE-2021-34480",
      "title": "Scripting Engine Memory Corruption Vulnerability",
      "component": "Microsoft Scripting Engine",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 6.8,
      "epss": 0.34185,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-34535",
      "url": "https://patchblox.com/security/cve/CVE-2021-34535",
      "title": "Remote Desktop Client Remote Code Execution Vulnerability",
      "component": "Remote Desktop Client",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.8,
      "epss": 0.21858,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26432",
      "url": "https://patchblox.com/security/cve/CVE-2021-26432",
      "title": "Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability",
      "component": "Windows Services for NFS ONCRPC XDR Driver",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.11434,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-36947",
      "url": "https://patchblox.com/security/cve/CVE-2021-36947",
      "title": "Windows Print Spooler Remote Code Execution Vulnerability",
      "component": "Windows Print Spooler Components",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.07557,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-36936",
      "url": "https://patchblox.com/security/cve/CVE-2021-36936",
      "title": "Windows Print Spooler Remote Code Execution Vulnerability",
      "component": "Windows Print Spooler Components",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 8.8,
      "epss": 0.07481,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2021-26433",
      "url": "https://patchblox.com/security/cve/CVE-2021-26433",
      "title": "Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability",
      "component": "Windows Services for NFS ONCRPC XDR Driver",
      "impact": "Information Disclosure",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.03569,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-36926",
      "url": "https://patchblox.com/security/cve/CVE-2021-36926",
      "title": "Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability",
      "component": "Windows Services for NFS ONCRPC XDR Driver",
      "impact": "Information Disclosure",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.03503,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-36932",
      "url": "https://patchblox.com/security/cve/CVE-2021-36932",
      "title": "Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability",
      "component": "Windows Services for NFS ONCRPC XDR Driver",
      "impact": "Information Disclosure",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.03503,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-36933",
      "url": "https://patchblox.com/security/cve/CVE-2021-36933",
      "title": "Windows Services for NFS ONCRPC XDR Driver Information Disclosure Vulnerability",
      "component": "Windows Services for NFS ONCRPC XDR Driver",
      "impact": "Information Disclosure",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.03503,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-34533",
      "url": "https://patchblox.com/security/cve/CVE-2021-34533",
      "title": "Windows Graphics Component Font Parsing Remote Code Execution Vulnerability",
      "component": "Microsoft Graphics Component",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02441,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-36937",
      "url": "https://patchblox.com/security/cve/CVE-2021-36937",
      "title": "Windows Media MPEG-4 Video Decoder Remote Code Execution Vulnerability",
      "component": "Microsoft Windows Codecs Library",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02301,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-34483",
      "url": "https://patchblox.com/security/cve/CVE-2021-34483",
      "title": "Windows Print Spooler Elevation of Privilege Vulnerability",
      "component": "Windows Print Spooler Components",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01089,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26425",
      "url": "https://patchblox.com/security/cve/CVE-2021-26425",
      "title": "Windows Event Tracing Elevation of Privilege Vulnerability",
      "component": "Windows Event Tracing",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00904,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26426",
      "url": "https://patchblox.com/security/cve/CVE-2021-26426",
      "title": "Windows User Account Profile Picture Elevation of Privilege Vulnerability",
      "component": "Windows User Profile Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00706,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}