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CVE-2026-20811 Win32k Elevation of Privilege Vulnerability

🗓️ 13 Jan 2026 17:56:11Reported by microsoftType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

CVE-2026-20811 is a Win32k elevation of privilege vulnerability.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-20811
13 Jan 202617:56
attackerkb
Circl
CVE-2026-20811
13 Jan 202618:01
circl
CNNVD
Microsoft Win32k 安全漏洞
13 Jan 202600:00
cnnvd
CVE
CVE-2026-20811
13 Jan 202617:56
cve
EUVD
EUVD-2026-2185
13 Jan 202617:56
euvd
Microsoft KB
January 13, 2026—KB5073379 (OS Build 26100.32230)
13 Jan 202616:00
mskb
Microsoft KB
January 13, 2026—KB5073450 (OS Build 25398.2092)
13 Jan 202616:00
mskb
Microsoft KB
January 13, 2026—KB5073455 (OS Build 22631.6491)
13 Jan 202616:00
mskb
Microsoft KB
January 13, 2026—KB5073457 (OS Build 20348.4648)
13 Jan 202616:00
mskb
Kaspersky
KLA90840 Multiple vulnerabilities were found in Microsoft Windows
13 Jan 202600:00
kaspersky
Rows per page
[
  {
    "vendor": "Microsoft",
    "product": "Windows 11 version 22H3",
    "platforms": [
      "ARM64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.22631.0",
        "lessThan": "10.0.22631.6491",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 11 Version 23H2",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.22631.0",
        "lessThan": "10.0.22631.6491",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 11 Version 24H2",
    "platforms": [
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26100.0",
        "lessThan": "10.0.26100.7623",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 11 Version 25H2",
    "versions": [
      {
        "version": "10.0.26200.0",
        "lessThan": "10.0.26200.7623",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2022",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.20348.0",
        "lessThan": "10.0.20348.4648",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.25398.0",
        "lessThan": "10.0.25398.2092",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2025",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26100.0",
        "lessThan": "10.0.26100.32230",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2025 (Server Core installation)",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26100.0",
        "lessThan": "10.0.26100.32230",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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01 Apr 2026 13:48Current
CVSS 3.17.8
EPSS0.00485
18