{
  "fix": "KB5073700",
  "url": "https://patchblox.com/security/fix/microsoft/kb5073700",
  "summary": "KB5073700, released January 13, 2026, fixes 26 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.",
  "platform": "microsoft",
  "type": "kb",
  "releaseKind": "Security",
  "title": "January 2026 security update",
  "released": "2026-01-13T08:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-20860, exploitation more likely",
  "supported": false,
  "cveCount": 26,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.19785,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://support.microsoft.com/help/5073700",
  "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-2026-20860",
      "url": "https://patchblox.com/security/cve/CVE-2026-20860",
      "title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability",
      "component": "Windows Ancillary Function Driver for WinSock",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.08279,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20840",
      "url": "https://patchblox.com/security/cve/CVE-2026-20840",
      "title": "Windows NTFS Remote Code Execution Vulnerability",
      "component": "Windows NTFS",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.04588,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20843",
      "url": "https://patchblox.com/security/cve/CVE-2026-20843",
      "title": "Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability",
      "component": "Windows Routing and Remote Access Service (RRAS)",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0342,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20820",
      "url": "https://patchblox.com/security/cve/CVE-2026-20820",
      "title": "Windows Common Log File System Driver Elevation of Privilege Vulnerability",
      "component": "Windows Common Log File System Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02564,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20816",
      "url": "https://patchblox.com/security/cve/CVE-2026-20816",
      "title": "Windows Installer Elevation of Privilege Vulnerability",
      "component": "Windows Installer",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.02437,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20922",
      "url": "https://patchblox.com/security/cve/CVE-2026-20922",
      "title": "Windows NTFS Remote Code Execution Vulnerability",
      "component": "Windows NTFS",
      "impact": "Remote Code Execution",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01084,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-31096",
      "url": "https://patchblox.com/security/cve/CVE-2023-31096",
      "title": "MITRE: CVE-2023-31096 Windows Agere Soft Modem Driver Elevation of Privilege Vulnerability",
      "component": "Agere Windows Modem Driver",
      "impact": "Elevation of Privilege",
      "priority": "Urgent",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00482,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2026-20929",
      "url": "https://patchblox.com/security/cve/CVE-2026-20929",
      "title": "Windows HTTP.sys Elevation of Privilege Vulnerability",
      "component": "Windows HTTP.sys",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.02871,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20875",
      "url": "https://patchblox.com/security/cve/CVE-2026-20875",
      "title": "Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability",
      "component": "Windows Local Security Authority Subsystem Service (LSASS)",
      "impact": "Denial of Service",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.0154,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20868",
      "url": "https://patchblox.com/security/cve/CVE-2026-20868",
      "title": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
      "component": "Windows Routing and Remote Access Service (RRAS)",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.01389,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20921",
      "url": "https://patchblox.com/security/cve/CVE-2026-20921",
      "title": "Windows SMB Server Elevation of Privilege Vulnerability",
      "component": "Windows SMB Server",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01176,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-55414",
      "url": "https://patchblox.com/security/cve/CVE-2024-55414",
      "title": "Windows Motorola Soft Modem Driver Elevation of Privilege Vulnerability",
      "component": "Windows Motorola Soft Modem Driver",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01139,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20849",
      "url": "https://patchblox.com/security/cve/CVE-2026-20849",
      "title": "Windows Kerberos Elevation of Privilege Vulnerability",
      "component": "Windows Kerberos",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01011,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20931",
      "url": "https://patchblox.com/security/cve/CVE-2026-20931",
      "title": "Windows Telephony Service Elevation of Privilege Vulnerability",
      "component": "Windows Telephony Service",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 8,
      "epss": 0.00845,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0386",
      "url": "https://patchblox.com/security/cve/CVE-2026-0386",
      "title": "Windows Deployment Services Remote Code Execution Vulnerability",
      "component": "Windows Deployment Services",
      "impact": "Remote Code Execution",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.0055,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20940",
      "url": "https://patchblox.com/security/cve/CVE-2026-20940",
      "title": "Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability",
      "component": "Windows Cloud Files Mini Filter Driver",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00456,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20831",
      "url": "https://patchblox.com/security/cve/CVE-2026-20831",
      "title": "Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability",
      "component": "Windows Ancillary Function Driver for WinSock",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.003,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20869",
      "url": "https://patchblox.com/security/cve/CVE-2026-20869",
      "title": "Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability",
      "component": "Windows Local Session Manager (LSM)",
      "impact": "Elevation of Privilege",
      "priority": "High",
      "severity": "Important",
      "cvss": 7,
      "epss": 0.00293,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20872",
      "url": "https://patchblox.com/security/cve/CVE-2026-20872",
      "title": "NTLM Hash Disclosure Spoofing Vulnerability",
      "component": "Windows NTLM",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.19785,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20925",
      "url": "https://patchblox.com/security/cve/CVE-2026-20925",
      "title": "NTLM Hash Disclosure Spoofing Vulnerability",
      "component": "Windows NTLM",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.5,
      "epss": 0.17929,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20927",
      "url": "https://patchblox.com/security/cve/CVE-2026-20927",
      "title": "Windows SMB Server Denial of Service Vulnerability",
      "component": "Windows SMB Server",
      "impact": "Denial of Service",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.3,
      "epss": 0.00909,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20834",
      "url": "https://patchblox.com/security/cve/CVE-2026-20834",
      "title": "Windows Spoofing Vulnerability",
      "component": "Windows Shell",
      "impact": "Spoofing",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00739,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20821",
      "url": "https://patchblox.com/security/cve/CVE-2026-20821",
      "title": "Remote Procedure Call Information Disclosure Vulnerability",
      "component": "Windows Remote Procedure Call",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 6.2,
      "epss": 0.00695,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20828",
      "url": "https://patchblox.com/security/cve/CVE-2026-20828",
      "title": "Windows rndismp6.sys Information Disclosure Vulnerability",
      "component": "Windows Internet Connection Sharing (ICS)",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.6,
      "epss": 0.00644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20833",
      "url": "https://patchblox.com/security/cve/CVE-2026-20833",
      "title": "Windows Kerberos Information Disclosure Vulnerability",
      "component": "Windows Kerberos",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 5.5,
      "epss": 0.00532,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-20936",
      "url": "https://patchblox.com/security/cve/CVE-2026-20936",
      "title": "Windows NDIS Information Disclosure Vulnerability",
      "component": "Windows NDIS",
      "impact": "Information Disclosure",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.00479,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}