{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Kc Udonsi (@glitchnsec) of Trend Micro Security Research working with Trend Micro Zero Day Initiative"
        ]
      },
      {
        "names": [
          "\u003ca href=\"https://twitter.com/sven_to\"\u003eSven Nobis\u003c/a\u003e of \u003ca href=\"https://www.ernw.de\"\u003eERNW GmbH\u003c/a\u003e"
        ]
      },
      {
        "names": [
          "\u003ca href=\"https://daviddworken.com/\"\u003eDavid Dworken\u003c/a\u003e"
        ]
      },
      {
        "names": [
          "Ron Masas, \u003ca href=\"https://hackk.io?cve=CVE-2021-34529\"\u003eHackk.io\u003c/a\u003e"
        ]
      },
      {
        "names": [
          "\u003ca href=\"https://www.linkedin.com/in/timofte-daniel/\"\u003eTimofte Daniel\u003c/a\u003e (\u003ca href=\"https://twitter.com/tim17d\"\u003e@tim17d\u003c/a\u003e)"
        ]
      },
      {
        "names": [
          "Ash Fox, Google Security Team"
        ]
      }
    ],
    "aggregate_severity": {
      "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": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2021-34529 Visual Studio Code Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34529"
      },
      {
        "category": "self",
        "summary": "CVE-2021-34529 Visual Studio Code Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-34529.json"
      },
      {
        "category": "external",
        "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": "Visual Studio Code Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2021-07-13T07:00:00.000Z",
      "generator": {
        "date": "2026-08-10T15:10:54.793Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2021-34529",
      "initial_release_date": "2021-07-13T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2021-07-13T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c1.57.1",
            "product": {
              "name": "Visual Studio Code \u003c1.57.1",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "1.57.1",
            "product": {
              "name": "Visual Studio Code 1.57.1",
              "product_id": "11622"
            }
          }
        ],
        "category": "product_name",
        "name": "Visual Studio Code"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-34529",
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "With the release of Visual Studio Code 1.57, a new feature was added called Workspace Trust. This new feature allows developers to open unfamiliar code or extensions in Restricted Mode with the option to later mark the code as trusted. Restricted Mode works to prevent the automatic execution of code by restricting accessing to certain VS Code features. More details about this new functionality can be found here - https://code.visualstudio.com/updates/v1_57#_workspace-trust.",
          "title": "How does Visual Studio Code protect against remote code execution vulnerabilities in extensions?"
        }
      ],
      "product_status": {
        "fixed": [
          "11622"
        ],
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2021-34529 Visual Studio Code Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34529"
        },
        {
          "category": "self",
          "summary": "CVE-2021-34529 Visual Studio Code Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-34529.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-07-13T07:00:00.000Z",
          "details": "1.57.1:Security Update:https://code.visualstudio.com/updates/v1_57",
          "product_ids": [
            "1"
          ],
          "url": "https://code.visualstudio.com/updates/v1_57"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.8,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Visual Studio Code Remote Code Execution Vulnerability"
    }
  ]
}