CERTFR-2026-AVI-0729

Vulnerability from certfr_avis - Published: 2026-06-10 - Updated: 2026-06-10

De multiples vulnérabilités ont été découvertes dans Microsoft .Net. Elles permettent à un attaquant de provoquer un déni de service à distance et une atteinte à l'intégrité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Microsoft .Net .NET 8.0 installé sur Mac OS versions antérieures à 8.0.28
Microsoft .Net .NET 9.0 installé sur Mac OS versions antérieures à 9.0.17
Microsoft .Net ASP.NET Core 10.0 versions antérieures à 10.0.9
Microsoft .Net .NET 10.0 installé sur Mac OS versions antérieures à 10.0.9
Microsoft .Net .NET 9.0 installé sur Linux versions antérieures à 9.0.17
Microsoft .Net ASP.NET Core 8.0 versions antérieures à 8.0.28
Microsoft .Net ASP.NET Core 9.0 versions antérieures à 9.0.17
Microsoft .Net .NET 10.0 installé sur Linux versions antérieures à 10.0.9
Microsoft .Net .NET 8.0 installé sur Linux versions antérieures à 8.0.28
Microsoft .Net .NET 8.0 versions antérieures à 8.0.28
References

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": ".NET 8.0 install\u00e9 sur Mac OS versions ant\u00e9rieures \u00e0 8.0.28",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 9.0 install\u00e9 sur Mac OS versions ant\u00e9rieures \u00e0 9.0.17",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "ASP.NET Core 10.0 versions ant\u00e9rieures \u00e0 10.0.9",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 10.0 install\u00e9 sur Mac OS versions ant\u00e9rieures \u00e0 10.0.9",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 9.0 install\u00e9 sur Linux versions ant\u00e9rieures \u00e0 9.0.17",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "ASP.NET Core 8.0 versions ant\u00e9rieures \u00e0 8.0.28",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "ASP.NET Core 9.0 versions ant\u00e9rieures \u00e0 9.0.17",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 10.0 install\u00e9 sur Linux versions ant\u00e9rieures \u00e0 10.0.9",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 8.0 install\u00e9 sur Linux versions ant\u00e9rieures \u00e0 8.0.28",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 8.0 versions ant\u00e9rieures \u00e0 8.0.28",
      "product": {
        "name": ".Net",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-45591",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45591"
    },
    {
      "name": "CVE-2026-45491",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45491"
    }
  ],
  "initial_release_date": "2026-06-10T00:00:00",
  "last_revision_date": "2026-06-10T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0729",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-06-10T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Microsoft .Net. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft .Net",
  "vendor_advisories": [
    {
      "published_at": "2026-06-09",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft .Net CVE-2026-45591",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591"
    },
    {
      "published_at": "2026-06-09",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft .Net CVE-2026-45491",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45491"
    }
  ]
}



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