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CVE-2026-20810

🗓️ 13 Jan 2026 17:56:10Reported by microsoftType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 16 Views

CVE-2026-20810 in Windows Ancillary Function Driver WinSock enables local privilege escalation.

Related
Detection
Affected
Refs
Social
NVD
Vulners
CNA
Node
microsoftwindows_10_1809Range<10.0.17763.8276x64
OR
microsoftwindows_10_1809Range<10.0.17763.8276x86
OR
microsoftwindows_10_21h2Range<10.0.19044.6809
OR
microsoftwindows_10_22h2Range<10.0.19045.6809
OR
microsoftwindows_server_2019Range<10.0.17763.8276
[
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1809",
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.17763.0",
        "lessThan": "10.0.17763.8276",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 21H2",
    "platforms": [
      "32-bit Systems",
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.19044.0",
        "lessThan": "10.0.19044.6809",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 22H2",
    "platforms": [
      "32-bit Systems",
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.19045.0",
        "lessThan": "10.0.19045.6809",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2019",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.17763.0",
        "lessThan": "10.0.17763.8276",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2019 (Server Core installation)",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.17763.0",
        "lessThan": "10.0.17763.8276",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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01 Apr 2026 13:48Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.8
EPSS0.0005
SSVC
16