{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "MSTIC"
        ]
      },
      {
        "names": [
          "MSTIC"
        ]
      }
    ],
    "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-2021-42292 Microsoft Excel Security Feature Bypass Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42292"
      },
      {
        "category": "self",
        "summary": "CVE-2021-42292 Microsoft Excel Security Feature Bypass Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-42292.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 Excel Security Feature Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2021-11-16T08:00:00.000Z",
      "generator": {
        "date": "2026-01-06T16:30:40.826Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2021-42292",
      "initial_release_date": "2021-11-09T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2021-11-09T08:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2021-11-16T08:00:00.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office 2019 for 32-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "8"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office 2019 for 32-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "11573"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2019 for 32-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office 2019 for 64-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "7"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office 2019 for 64-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "11574"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2019 for 64-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.55.21111400",
            "product": {
              "name": "Microsoft Office 2019 for Mac \u003c16.55.21111400",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "16.55.21111400",
            "product": {
              "name": "Microsoft Office 2019 for Mac 16.55.21111400",
              "product_id": "11575"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2019 for Mac"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases",
              "product_id": "11762"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases",
              "product_id": "11763"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.55.21111400",
            "product": {
              "name": "Microsoft Office LTSC for Mac 2021 \u003c16.55.21111400",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "16.55.21111400",
            "product": {
              "name": "Microsoft Office LTSC for Mac 2021 16.55.21111400",
              "product_id": "11951"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC for Mac 2021"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 64-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "11952"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC 2021 for 64-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 32-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "11953"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC 2021 for 32-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.5239.1001",
            "product": {
              "name": "Microsoft Excel 2016 (32-bit edition) \u003c16.0.5239.1001",
              "product_id": "12"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.5239.1001",
            "product": {
              "name": "Microsoft Excel 2016 (32-bit edition) 16.0.5239.1001",
              "product_id": "10739"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Excel 2016 (32-bit edition)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.5239.1001",
            "product": {
              "name": "Microsoft Excel 2016 (64-bit edition) \u003c16.0.5239.1001",
              "product_id": "11"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.5239.1001",
            "product": {
              "name": "Microsoft Excel 2016 (64-bit edition) 16.0.5239.1001",
              "product_id": "10740"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Excel 2016 (64-bit edition)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.5239.1001",
            "product": {
              "name": "Microsoft Office 2016 (32-bit edition) \u003c16.0.5239.1001",
              "product_id": "10"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.5239.1001",
            "product": {
              "name": "Microsoft Office 2016 (32-bit edition) 16.0.5239.1001",
              "product_id": "10753"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2016 (32-bit edition)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.5239.1001",
            "product": {
              "name": "Microsoft Office 2016 (64-bit edition) \u003c16.0.5239.1001",
              "product_id": "9"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.5239.1001",
            "product": {
              "name": "Microsoft Office 2016 (64-bit edition) 16.0.5239.1001",
              "product_id": "10754"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2016 (64-bit edition)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5397.1001",
            "product": {
              "name": "Microsoft Excel 2013 RT Service Pack 1 \u003c15.0.5397.1001",
              "product_id": "13"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5397.1001",
            "product": {
              "name": "Microsoft Excel 2013 RT Service Pack 1 15.0.5397.1001",
              "product_id": "10656"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Excel 2013 RT Service Pack 1"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5397.1001",
            "product": {
              "name": "Microsoft Excel 2013 Service Pack 1 (32-bit editions) \u003c15.0.5397.1001",
              "product_id": "15"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5397.1001",
            "product": {
              "name": "Microsoft Excel 2013 Service Pack 1 (32-bit editions) 15.0.5397.1001",
              "product_id": "10654"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Excel 2013 Service Pack 1 (32-bit editions)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5397.1001",
            "product": {
              "name": "Microsoft Excel 2013 Service Pack 1 (64-bit editions) \u003c15.0.5397.1001",
              "product_id": "14"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5397.1001",
            "product": {
              "name": "Microsoft Excel 2013 Service Pack 1 (64-bit editions) 15.0.5397.1001",
              "product_id": "10655"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Excel 2013 Service Pack 1 (64-bit editions)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5397.1001",
            "product": {
              "name": "Microsoft Office 2013 RT Service Pack 1 \u003c15.0.5397.1001",
              "product_id": "16"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5397.1001",
            "product": {
              "name": "Microsoft Office 2013 RT Service Pack 1 15.0.5397.1001",
              "product_id": "10603"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2013 RT Service Pack 1"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5397.1001",
            "product": {
              "name": "Microsoft Office 2013 Service Pack 1 (32-bit editions) \u003c15.0.5397.1001",
              "product_id": "18"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5397.1001",
            "product": {
              "name": "Microsoft Office 2013 Service Pack 1 (32-bit editions) 15.0.5397.1001",
              "product_id": "10601"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2013 Service Pack 1 (32-bit editions)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5397.1001",
            "product": {
              "name": "Microsoft Office 2013 Service Pack 1 (64-bit editions) \u003c15.0.5397.1001",
              "product_id": "17"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5397.1001",
            "product": {
              "name": "Microsoft Office 2013 Service Pack 1 (64-bit editions) 15.0.5397.1001",
              "product_id": "10602"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office 2013 Service Pack 1 (64-bit editions)"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-42292",
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "The security update for Microsoft Office 2019 for Mac and Microsoft Office LTSC for Mac 2021 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.",
          "title": "Are the updates for the Microsoft Office for Mac currently available?"
        },
        {
          "category": "faq",
          "text": "No, the Preview Pane is not an attack vector.",
          "title": "Is the Preview Pane an attack vector for this vulnerability?"
        },
        {
          "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": [
          "10601",
          "10602",
          "10603",
          "10654",
          "10655",
          "10656",
          "10739",
          "10740",
          "10753",
          "10754",
          "11573",
          "11574",
          "11575",
          "11762",
          "11763",
          "11951",
          "11952",
          "11953"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15",
          "16",
          "17",
          "18"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2021-42292 Microsoft Excel Security Feature Bypass Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42292"
        },
        {
          "category": "self",
          "summary": "CVE-2021-42292 Microsoft Excel Security Feature Bypass Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-42292.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates",
          "product_ids": [
            "8",
            "7",
            "5",
            "4",
            "2",
            "1"
          ],
          "url": "https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "16.55.21111400:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049",
          "product_ids": [
            "6",
            "3"
          ],
          "url": "https://go.microsoft.com/fwlink/p/?linkid=831049"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "16.0.5239.1001:Security Update:https://support.microsoft.com/help/5002056",
          "product_ids": [
            "12"
          ],
          "url": "https://support.microsoft.com/help/5002056"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "16.0.5239.1001:Security Update:https://support.microsoft.com/help/4486670",
          "product_ids": [
            "12",
            "10"
          ],
          "url": "https://support.microsoft.com/help/4486670"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "16.0.5239.1001:Security Update:https://support.microsoft.com/help/5002056",
          "product_ids": [
            "11"
          ],
          "url": "https://support.microsoft.com/help/5002056"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "16.0.5239.1001:Security Update:https://support.microsoft.com/help/4486670",
          "product_ids": [
            "11",
            "9"
          ],
          "url": "https://support.microsoft.com/help/4486670"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "15.0.5397.1001:Security Update:https://support.microsoft.com/help/5002072",
          "product_ids": [
            "13"
          ],
          "url": "https://support.microsoft.com/help/5002072"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "15.0.5397.1001:Security Update:https://support.microsoft.com/help/5002072",
          "product_ids": [
            "13",
            "16"
          ],
          "url": "https://support.microsoft.com/help/5002072"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "15.0.5397.1001:Security Update:https://support.microsoft.com/help/5002072",
          "product_ids": [
            "15"
          ],
          "url": "https://support.microsoft.com/help/5002072"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "15.0.5397.1001:Security Update:https://support.microsoft.com/help/5002035",
          "product_ids": [
            "15",
            "18"
          ],
          "url": "https://support.microsoft.com/help/5002035"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "15.0.5397.1001:Security Update:https://support.microsoft.com/help/5002072",
          "product_ids": [
            "14"
          ],
          "url": "https://support.microsoft.com/help/5002072"
        },
        {
          "category": "vendor_fix",
          "date": "2021-11-09T08:00:00.000Z",
          "details": "15.0.5397.1001:Security Update:https://support.microsoft.com/help/5002035",
          "product_ids": [
            "14",
            "17"
          ],
          "url": "https://support.microsoft.com/help/5002035"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Security Feature Bypass"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:Yes;Latest Software Release:Exploitation Detected;Older Software Release:Exploitation Detected"
        }
      ],
      "title": "Microsoft Excel Security Feature Bypass Vulnerability"
    }
  ]
}