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CVE-2026-20811

🗓️ 13 Jan 2026 17:56:11Reported by microsoftType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 92 Views

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

Related
Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-20811
13 Jan 202617:56
–attackerkb
bdu_fstec
BDU FSTEC
Win32k.sys Privilege Escalation
15 Jan 202600:00
–bdu_fstec
circl
Circl
CVE-2026-20811
13 Jan 202618:01
–circl
cnnvd
CNNVD
Microsoft Win32k 安全漏洞
13 Jan 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-20811 Win32k Elevation of Privilege Vulnerability
13 Jan 202617:56
–cvelist
euvd
EUVD
EUVD-2026-2185
13 Jan 202617:56
–euvd
mskb
Microsoft KB
January 13, 2026—KB5073379 (OS Build 26100.32230)
13 Jan 202616:00
–mskb
mskb
Microsoft KB
January 13, 2026—KB5073450 (OS Build 25398.2092)
13 Jan 202616:00
–mskb
mskb
Microsoft KB
January 13, 2026—KB5073455 (OS Build 22631.6491)
13 Jan 202616:00
–mskb
mskb
Microsoft KB
January 13, 2026—KB5073457 (OS Build 20348.4648)
13 Jan 202616:00
–mskb
Rows per page
NVD
Vulners
CNA
Node
OR
microsoftwindows_11_23h2Range<10.0.22631.6491
microsoftwindows_11_24h2Range<10.0.26100.7623
microsoftwindows_11_25h2Range<10.0.26200.7623
microsoftwindows_server_2022Range<10.0.20348.4648
microsoftwindows_server_2025Range<10.0.26100.32230
[
  {
    "vendor": "Microsoft",
    "product": "Windows 11 version 23H2",
    "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",
    "platforms": [
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "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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30 Jul 2026 21:16Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.8
EPSS0.00487
SSVC
92