{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Viettel Cyber Security with Trend Zero Day Initiative"
        ]
      },
      {
        "names": [
          "\u003ca href=\"https://twitter.com/_l0gg\"\u003ekhoadha\u003c/a\u003e with \u003ca href=\"https://viettelsecurity.com/\"\u003evcslab of Viettel Cyber Security\u003c/a\u003e"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Critical"
    },
    "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-2025-53770 Microsoft SharePoint Server Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770"
      },
      {
        "category": "self",
        "summary": "CVE-2025-53770 Microsoft SharePoint Server Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-53770.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": "Microsoft SharePoint Server Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2025-08-06T07:00:00.000Z",
      "generator": {
        "date": "2025-08-18T17:50:23.571Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2025-53770",
      "initial_release_date": "2025-07-08T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-07-19T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2025-07-19T07:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Updated acknowledgment. This is an informational change only."
        },
        {
          "date": "2025-07-20T07:00:00.000Z",
          "legacy_version": "2",
          "number": "3",
          "summary": "The security update is available for Microsoft SharePoint Server Subscription Edition.  Microsoft strongly encourages customers running this version of SharePoint to install this update as soon as possible."
        },
        {
          "date": "2025-07-20T07:00:00.000Z",
          "legacy_version": "3",
          "number": "4",
          "summary": "The security update is available for Microsoft SharePoint Server 2019. Microsoft strongly encourages customers running this version of SharePoint to install this update as soon as possible."
        },
        {
          "date": "2025-07-21T07:00:00.000Z",
          "legacy_version": "3.1",
          "number": "5",
          "summary": "Added an FAQ and updated the CVSS score. This is an informational change only."
        },
        {
          "date": "2025-08-06T07:00:00.000Z",
          "legacy_version": "3.3",
          "number": "6",
          "summary": "Acknowledgement added. This is an informational change only."
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.5513.1001",
            "product": {
              "name": "Microsoft SharePoint Enterprise Server 2016 \u003c16.0.5513.1001",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.5513.1001",
            "product": {
              "name": "Microsoft SharePoint Enterprise Server 2016 16.0.5513.1001",
              "product_id": "10950"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Enterprise Server 2016"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.10417.20037",
            "product": {
              "name": "Microsoft SharePoint Server 2019 \u003c16.0.10417.20037",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.10417.20037",
            "product": {
              "name": "Microsoft SharePoint Server 2019 16.0.10417.20037",
              "product_id": "11585"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Server 2019"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.18526.20508",
            "product": {
              "name": "Microsoft SharePoint Server Subscription Edition \u003c16.0.18526.20508",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.18526.20508",
            "product": {
              "name": "Microsoft SharePoint Server Subscription Edition 16.0.18526.20508",
              "product_id": "11961"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Server Subscription Edition"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-53770",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. This page will be updated when an update is available.\nIf enabling AMSI is not an option, you should remove access to the internet from the SharePoint server.  These two options protect from unauthenticated attacks.\nNo, Microsoft 365 SharePoint Online is not vulnerable to this issue.\nYes, please see Customer guidance for SharePoint vulnerability CVE-2025-53770  for more information.",
          "title": "7/20/2025 Update: Updates are now available for Microsoft SharePoint Server Subscription Edition and Microsoft SharePoint Server 2019.\nWhy are there no links to the update to protect from this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Yes, the update for  CVE-2025-53770 includes more robust protections than the update for CVE-2025-49704.  The update for CVE-2025-53771 includes more robust protections than the update for CVE-2025-49706.",
          "title": "Are the two new CVEs that were released related to the two SharePoint vulnerabilities that were documented by CVE-2025-49704 and CVE-2025-49706?"
        },
        {
          "category": "faq",
          "text": "Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.",
          "title": "There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?"
        }
      ],
      "product_status": {
        "fixed": [
          "10950",
          "11585",
          "11961"
        ],
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-53770 Microsoft SharePoint Server Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770"
        },
        {
          "category": "self",
          "summary": "CVE-2025-53770 Microsoft SharePoint Server Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-53770.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-07-19T07:00:00.000Z",
          "details": "16.0.5513.1001:Security Update:https://support.microsoft.com/help/5002760",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5002760"
        },
        {
          "category": "vendor_fix",
          "date": "2025-07-19T07:00:00.000Z",
          "details": "16.0.5513.1001:Security Update:https://support.microsoft.com/help/5002759",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5002759"
        },
        {
          "category": "vendor_fix",
          "date": "2025-07-19T07:00:00.000Z",
          "details": "16.0.10417.20037:Security Update:https://www.microsoft.com/en-us/download/details.aspx?id=108286",
          "product_ids": [
            "2"
          ],
          "url": "https://www.microsoft.com/en-us/download/details.aspx?id=108286"
        },
        {
          "category": "vendor_fix",
          "date": "2025-07-19T07:00:00.000Z",
          "details": "16.0.10417.20037:Security Update:https://support.microsoft.com/help/5002753",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5002753"
        },
        {
          "category": "vendor_fix",
          "date": "2025-07-19T07:00:00.000Z",
          "details": "16.0.18526.20508:Security Update:https://www.microsoft.com/en-us/download/details.aspx?id=108285",
          "product_ids": [
            "1"
          ],
          "url": "https://www.microsoft.com/en-us/download/details.aspx?id=108285"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "FUNCTIONAL",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "WORKAROUND",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 9.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:W/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:Yes;Latest Software Release:Exploitation Detected"
        }
      ],
      "title": "Microsoft SharePoint Server Remote Code Execution Vulnerability"
    }
  ]
}