{
  "document": {
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      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "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": {
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      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
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      {
        "category": "self",
        "summary": "CVE-2025-26646 .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability - HTML",
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      },
      {
        "category": "self",
        "summary": "CVE-2025-26646 .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-26646.json"
      },
      {
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        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": ".NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability",
    "tracking": {
      "current_release_date": "2025-05-22T07:00:00.000Z",
      "generator": {
        "date": "2025-07-15T01:10:58.424Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-26646",
      "initial_release_date": "2025-05-13T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-05-13T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-05-22T07:00:00.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "To comprehensively address CVE-2025-26646, Microsoft has released security updates on May 22, 2025 for Visual Studio 2022 version 17.10. In addition, updates .NET 8.0.313 and .NET 8.0.410 have been released for .NET SDKs 8.0.3xx and 8.0.4xx, respectively. For more information about the .NET updates see [KB5059200](https://support.microsoft.com/en-us/topic/-net-8-0-update-may-22-2025-kb5059200-8ace2b08-2644-454e-a43f-157c60835e49).   Microsoft recommends customers install these update to be fully protected from the vulnerability."
        }
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      "status": "final",
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        ],
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    {
      "cve": "CVE-2025-26646",
      "cwe": {
        "id": "CWE-73",
        "name": "External Control of File Name or Path"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An authorized attacker with standard user privileges could place a malicious file and then wait for the privileged victim to run the calling command.",
          "title": "According to the CVSS metric, user interaction is required (UI:R) and privileges required \u00a0is low (PR:L). What does that mean for this vulnerability?"
        }
      ],
      "product_status": {
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          "12322",
          "12414",
          "12415",
          "12416",
          "12432",
          "12433",
          "12434",
          "12459",
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          "16763"
        ],
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          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11"
        ]
      },
      "references": [
        {
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          "summary": "CVE-2025-26646 .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26646"
        },
        {
          "category": "self",
          "summary": "CVE-2025-26646 .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-26646.json"
        }
      ],
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          "category": "vendor_fix",
          "date": "2025-05-13T07:00:00.000Z",
          "details": "8.0.16:Security Update:https://support.microsoft.com/help/5059200",
          "product_ids": [
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            "8",
            "7"
          ],
          "url": "https://support.microsoft.com/help/5059200"
        },
        {
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          "date": "2025-05-13T07:00:00.000Z",
          "details": "9.0.5:Security Update:https://support.microsoft.com/help/5059201",
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            "5",
            "4"
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          "url": "https://support.microsoft.com/help/5059201"
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          "category": "vendor_fix",
          "date": "2025-05-13T07:00:00.000Z",
          "details": "17.12.8:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes",
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          ],
          "url": "https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes"
        },
        {
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          "date": "2025-05-13T07:00:00.000Z",
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          "url": "https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes"
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        {
          "category": "vendor_fix",
          "date": "2025-05-13T07:00:00.000Z",
          "details": "17.8.21:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes",
          "product_ids": [
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          "url": "https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes"
        },
        {
          "category": "vendor_fix",
          "date": "2025-05-13T07:00:00.000Z",
          "details": "17.10.15:Security Update:https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes",
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          "product_ids": [
            "1"
          ],
          "url": "https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes"
        }
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Spoofing"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely"
        }
      ],
      "title": ".NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability"
    }
  ]
}