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CVE-2026-97801

🗓️ 13 Oct 2026 19:01:45Reported by microsoftType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

Improper input validation in .NET Framework allows an unauthorized attacker to perform tampering.

Related
Detection
Affected
Refs
Vulners
CNA
Node
Node
AND
microsoft4.7.2Range4.7.0–2.0.50727.9073
Node
[
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 3.5",
    "platforms": [
      "Windows 11 version 26H1",
      "Windows Server 2012",
      "Windows Server 2012 R2"
    ],
    "versions": [
      {
        "version": "3.5.0",
        "lessThan": "2.0.50727.9188 AND 3.0.30729.9171",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2",
    "platforms": [
      "Windows 10 version 1607",
      "Windows Server 2016",
      "Windows Server 2019"
    ],
    "versions": [
      {
        "version": "3.0.0.0",
        "lessThan": "2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 3.5 AND 4.7.2",
    "platforms": [
      "Windows 10 version 1809"
    ],
    "versions": [
      {
        "version": "4.7.0",
        "lessThan": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 3.5 AND 4.8",
    "platforms": [
      "Windows 10 version 1809",
      "Windows 10 version 21H2",
      "Windows 10 version 22H2",
      "Windows Server 2019",
      "Windows Server 2022"
    ],
    "versions": [
      {
        "version": "4.8.0",
        "lessThan": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 3.5 AND 4.8.1",
    "platforms": [
      "Windows 10 version 21H2",
      "Windows 10 version 22H2",
      "Windows 11 version 23H2",
      "Windows 11 version 24H2",
      "Windows 11 version 25H2",
      "Windows 11 version 26H2",
      "Windows Server 2022",
      "Windows Server 2025"
    ],
    "versions": [
      {
        "version": "4.8.1",
        "lessThan": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
    "platforms": [
      "Windows Server 2012",
      "Windows Server 2012 R2"
    ],
    "versions": [
      {
        "version": "4.7.0",
        "lessThan": "4.7.4150.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 4.8",
    "platforms": [
      "Windows 10 version 1607",
      "Windows Server 2012",
      "Windows Server 2012 R2",
      "Windows Server 2016"
    ],
    "versions": [
      {
        "version": "4.8.0",
        "lessThan": "4.8.4811.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft .NET Framework 4.8.1",
    "platforms": [
      "Windows 11 version 26H1"
    ],
    "versions": [
      {
        "version": "4.8.0.0",
        "lessThan": "4.8.9363.0",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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13 Oct 2026 23:19Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
7