CVE-2026-45491 (GCVE-0-2026-45491)
Vulnerability from cvelistv5
Published
2026-06-09 17:04
Modified
2026-06-09 21:49
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.
Impacted products
Show details on NVD website


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      "affected": [
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          "product": ".NET 10.0",
          "vendor": "Microsoft",
          "versions": [
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          "product": ".NET 8.0",
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              "status": "affected",
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                },
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      "datePublic": "2026-06-09T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Improper link resolution before file access (\u0027link following\u0027) in .NET allows an unauthorized attacker to perform tampering locally."
        }
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      "metrics": [
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          "cvssV3_1": {
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C",
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en-US",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-06-09T21:49:56.823Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": ".NET Tampering Vulnerability",
          "tags": [
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            "patch"
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          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45491"
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  "cveMetadata": {
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    "cveId": "CVE-2026-45491",
    "datePublished": "2026-06-09T17:04:44.457Z",
    "dateReserved": "2026-05-12T16:07:22.618Z",
    "dateUpdated": "2026-06-09T21:49:56.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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