Medium

Windows NTLM Spoofing Vulnerability

Type: advisorySource: Official CVE List1 source record

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

Announced 9 Jun 2026Group revision 1

Original source ↗

CVE-2026-50508

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-50508

Windows 10 Version 1607

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows 11 version 22H2

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2012

Source reference: /containers/cna/affected/2/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2012 (Server Core installation)

Source reference: /containers/cna/affected/3/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2012 R2

Source reference: /containers/cna/affected/4/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2012 R2 (Server Core installation)

Source reference: /containers/cna/affected/5/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2016

Source reference: /containers/cna/affected/6/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2016 (Server Core installation)

Source reference: /containers/cna/affected/7/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server 2022

Source reference: /containers/cna/affected/8/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Windows Server version 2004

Source reference: /containers/cna/affected/9/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "Microsoft",
    "product": "Windows 10 Version 1607",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.14393.0",
        "lessThan": "10.0.14393.9234",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 11 version 22H2",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.22621.0",
        "lessThan": "10.0.22631.7219",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "ARM64-based Systems",
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012",
    "versions": [
      {
        "status": "affected",
        "version": "6.2.9200.0",
        "lessThan": "6.2.9200.26132",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012 (Server Core installation)",
    "versions": [
      {
        "status": "affected",
        "version": "6.2.9200.0",
        "lessThan": "6.2.9200.26132",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012 R2",
    "versions": [
      {
        "status": "affected",
        "version": "6.3.9600.0",
        "lessThan": "6.3.9600.23228",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2012 R2 (Server Core installation)",
    "versions": [
      {
        "status": "affected",
        "version": "6.3.9600.0",
        "lessThan": "6.3.9600.23228",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2016",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.14393.0",
        "lessThan": "10.0.14393.9234",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2016 (Server Core installation)",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.14393.0",
        "lessThan": "10.0.14393.9234",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2022",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.20348.0",
        "lessThan": "10.0.20348.5256",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server version 2004",
    "versions": [
      {
        "status": "affected",
        "version": "10.0.0",
        "lessThan": "10.0.19045.7417",
        "versionType": "custom"
      }
    ],
    "platforms": [
      "x64-based Systems"
    ]
  }
]

Related CVEs: CVE-2026-50508
Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event: #825 · Revision 1
Added to Heist Feed: Sat, 24 Oct 2026 20:51:50 GMT
Publisher date: Tue, 09 Jun 2026 17:05:17 GMT

Read the original announcement

Revision history

24 Oct 2026CVE-2026-50508 · Revision 1Source updated