Microsoft Security Advisory CVE-2026-26131 – .NET Elevation of Privilege Vulnerability

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        "last_known_affected_version_range": "\u003c= 10.0.3"
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  "aliases": [
    "CVE-2026-26131"
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  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-11T19:53:24Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "# Microsoft Security Advisory CVE-2026-26131 \u2013 .NET Elevation of Privilege Vulnerability\n\n## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in .NET 10.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. \n\nAn elevation of privilege vulnerability exists in .NET due to improper authorization. Incorrect packaging permissions could allow an attacker to gain elevated privileges.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/386\n\n## CVSS Details\n\n- **Severity:** High\n- **Version:** 3.1\n- **Score:** 7.8\n- **Vector:** `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C`\n- **Weakness:** CWE-276 (Incorrect Default Permissions)\n\n## Affected Platforms\n\n- **Platforms:** Linux\n- **Architectures:** All\n\n## Affected Products\n\n### \u003ca name=\".NET 10\"\u003e\u003c/a\u003e.NET 10\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.NetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm)               | \u003e= 10.0.0, \u003c= 10.0.3 | 10.0.4\n[Microsoft.NetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm64)           | \u003e= 10.0.0, \u003c= 10.0.3 | 10.0.4\n[Microsoft.NetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm)     | \u003e= 10.0.0, \u003c= 10.0.3 | 10.0.4\n[Microsoft.NetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm64) | \u003e= 10.0.0, \u003c= 10.0.3 | 10.0.4\n[Microsoft.NetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-x64)     | \u003e= 10.0.0, \u003c= 10.0.3 | 10.0.4\n[Microsoft.NetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-x64)               | \u003e= 10.0.0, \u003c= 10.0.3 | 10.0.4\n\n## Advisory FAQ\n\n### \u003ca name=\"how-affected\"\u003e\u003c/a\u003eHow do I know if I am affected?\n\nIf using an affected package listed in [affected products](#affected-products), you\u0027re exposed to the vulnerability.\n\n### \u003ca name=\"how-fix\"\u003e\u003c/a\u003eHow do I fix the issue?\n\n1. To fix the issue please install the latest version of .NET 10.0. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET  SDKs.\n2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the `dotnet --info` command. \n\nOnce you have installed the updated runtime or SDK, restart your apps for the update to take effect.\n\nAdditionally, if you\u0027ve deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).\n\nSecurity reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2026-26131]( https://www.cve.org/CVERecord?id=CVE-2026-26131)\n\n### Acknowledgements\n\nIgor Kovalchuk\n\n### Revisions\n\nV1.0 (March 10, 2026): Advisory published.",
  "id": "GHSA-crjq-wm6x-6qx7",
  "modified": "2026-03-11T19:53:25Z",
  "published": "2026-03-11T19:53:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/runtime/security/advisories/GHSA-crjq-wm6x-6qx7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26131"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/runtime"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": ".NET Elevation of Privilege Vulnerability"
}

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        "last_known_affected_version_range": "\u003c= 10.0.3"
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  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
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    "github_reviewed": true,
    "github_reviewed_at": "2026-03-11T18:54:29Z",
    "nvd_published_at": "2026-03-10T18:18:42Z",
    "severity": "HIGH"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-crjq-wm6x-6qx7. This link is maintained to preserve external references.\n\n### Original Description\n\nIncorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-387c-qmrw-59qv",
  "modified": "2026-03-11T18:54:29Z",
  "published": "2026-03-10T18:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26131"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/dotnet"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: Microsoft Security Advisory CVE-2026-26131 \u2013 .NET Elevation of Privilege Vulnerability",
  "withdrawn": "2026-03-11T18:54:29Z"
}

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": ".NET 10.0.x sur Linux versions ant\u00e9rieures \u00e0 10.0.4",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
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      "product": {
        "name": "N/A",
        "vendor": {
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          "scada": false
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      "description": ".NET 9.0.x sur Linux versions ant\u00e9rieures \u00e0 9.0.14",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "ASP.NET Core 9.0.x versions ant\u00e9rieures \u00e0 9.0.14",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 10.0.x sur Windows versions ant\u00e9rieures \u00e0 10.0.4",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
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      }
    },
    {
      "description": ".NET 9.0.x sur Windows versions ant\u00e9rieures \u00e0 9.0.14",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": ".NET 10.0.x sur Mac OS versions ant\u00e9rieures \u00e0 10.0.4",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "ASP.NET Core 8.0.x versions ant\u00e9rieures \u00e0 8.0.25",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
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      }
    }
  ],
  "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-2026-26130",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-26130"
    },
    {
      "name": "CVE-2026-26127",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-26127"
    },
    {
      "name": "CVE-2026-26131",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-26131"
    }
  ],
  "initial_release_date": "2026-03-11T00:00:00",
  "last_revision_date": "2026-03-11T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0272",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-03-11T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Microsoft .Net. Elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft .Net",
  "vendor_advisories": [
    {
      "published_at": "2026-03-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft .Net CVE-2026-26130",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26130"
    },
    {
      "published_at": "2026-03-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft .Net CVE-2026-26131",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131"
    },
    {
      "published_at": "2026-03-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft .Net CVE-2026-26127",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26127"
    }
  ]
}

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        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
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        "text": "This update includes the following RPMs:\n\ndotnet10.0:\n  * aspnetcore-runtime-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * aspnetcore-runtime-dbg-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * aspnetcore-targeting-pack-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-apphost-pack-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-host-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-hostfxr-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-runtime-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-runtime-dbg-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-sdk-10.0-10.0.106-1.hum1 (aarch64, x86_64)\n  * dotnet-sdk-10.0-source-built-artifacts-10.0.106-1.hum1 (aarch64, x86_64)\n  * dotnet-sdk-aot-10.0-10.0.106-1.hum1 (aarch64, x86_64)\n  * dotnet-sdk-dbg-10.0-10.0.106-1.hum1 (aarch64, x86_64)\n  * dotnet-targeting-pack-10.0-10.0.6-1.hum1 (aarch64, x86_64)\n  * dotnet-templates-10.0-10.0.106-1.hum1 (aarch64, x86_64)\n  * dotnet10.0-10.0.106-1.hum1.src (src)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
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        "url": "https://access.redhat.com/errata/RHSA-2026:9077"
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        "url": "https://access.redhat.com/security/updates/classification/"
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        {
          "category": "external",
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        {
          "category": "external",
          "summary": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131"
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        }
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          "details": "Moderate"
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      "title": "dotnet: .NET: Privilege escalation via incorrect default permissions"
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    {
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      "discovery_date": "2026-04-13T05:00:07.414000+00:00",
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          "text": "A flaw was found in .NET. A remote attacker could exploit a vulnerability related to unsafe transforms in EncryptedXml. This could lead to a Denial of Service (DoS), making the service unavailable, and a bypass of security features.",
          "title": "Vulnerability description"
        },
        {
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          "text": "dotnet: .NET: Security Bypass and Denial of Service Vulnerability",
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        },
        {
          "category": "other",
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          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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        {
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-26171",
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        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-26171",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26171"
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          "details": "Important"
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      "title": "dotnet: .NET: Security Bypass and Denial of Service Vulnerability"
    },
    {
      "cve": "CVE-2026-32178",
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        "id": "CWE-138",
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          "title": "Vulnerability description"
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        {
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          "text": "dotnet: Dotnet: SMTP Command Injection and Header Injection via MailAddress parsing flaw",
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        {
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          "text": "This Important flaw in the .NET runtime\u0027s System.Net.Mail component affects Red Hat Enterprise Linux and Red Hat Hardened Images. Improper neutralization of carriage return and line feed sequences during email address parsing can lead to SMTP command or header injection, enabling email spoofing in applications utilizing the affected .NET versions for SMTP operations.\n\nThe impact is primarily related to how email data is handled and interpreted. By injecting crafted header content, an attacker may influence the structure of email messages and potentially expose sensitive information included in those messages to unintended recipients.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
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          "url": "https://access.redhat.com/errata/RHSA-2026:9077"
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          "category": "workaround",
          "details": "Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security\u0027s standards for usability, deployment, applicability, or stability. Customers are advised to apply the relevant security updates when they become available.",
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      "scores": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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          "details": "Important"
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      "title": "dotnet: Dotnet: SMTP Command Injection and Header Injection via MailAddress parsing flaw"
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    {
      "cve": "CVE-2026-32203",
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        "id": "CWE-787",
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          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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            "baseScore": 7.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
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        {
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        {
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        },
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        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "notes": [
        {
          "category": "other",
          "text": "Allocation of Resources Without Limits or Throttling",
          "title": "CWE-770"
        },
        {
          "category": "description",
          "text": "An ASP.NET Core vulnerability involving unrestricted resource allocation allows unauthorized attackers to cause denial of service attacks over a network by exhausting system resources.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-26130 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-26130.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18"
          ]
        }
      ],
      "title": "CVE-2026-26130"
    }
  ]
}

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
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        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Microsoft ASP.NET (Active Server Pages .NET) ist eine Technologie zum Erstellen dynamischer Webseiten, Webanwendungen und Webservices auf Basis des Microsoft .NET-Frameworks.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler. oder ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Microsoft ASP.NET und Microsoft .NET ausnutzen, um Administratorrechte zu erlangen oder um einen Denial-of-Service-Zustand zu verursachen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-0657 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0657.json"
      },
      {
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        "summary": "WID-SEC-2026-0657 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0657"
      },
      {
        "category": "external",
        "summary": "Microsoft Leitfaden f\u00fcr Sicherheitsupdates",
        "url": "https://msrc.microsoft.com/update-guide/"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft ASP.NET und .NET: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-03-10T23:00:00.000+00:00",
      "generator": {
        "date": "2026-03-11T07:36:41.583+00:00",
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        {
          "date": "2026-03-10T23:00:00.000+00:00",
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        ],
        "category": "vendor",
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              {
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        ],
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        "name": "microsoft"
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      "title": "CVE-2026-26131"
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}

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://www.linkedin.com/in/igorkovalchuk/\"\u003eIgor Kovalchuk\u003c/a\u003e"
        ]
      }
    ],
    "aggregate_severity": {
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
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        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
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    },
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        "category": "self",
        "summary": "CVE-2026-26131 .NET Elevation of Privilege Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131"
      },
      {
        "category": "self",
        "summary": "CVE-2026-26131 .NET Elevation of Privilege Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-26131.json"
      },
      {
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        "summary": "Microsoft Exploitability Index",
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      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
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      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
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    ],
    "title": ".NET Elevation of Privilege Vulnerability",
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          },
          {
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          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker who successfully exploited this vulnerability could gain the highest privileges on the system.",
          "title": "What privileges could be gained by an attacker who successfully exploited this vulnerability?"
        }
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        },
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            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.8,
            "userInteraction": "NONE",
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      "threats": [
        {
          "category": "impact",
          "details": "Elevation of Privilege"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": ".NET Elevation of Privilege Vulnerability"
    }
  ]
}