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cnvd-2021-69088
Vulnerability from cnvd
Title: Microsoft MSHTML远程代码执行漏洞
Description:
MSHTML（又称为Trident）是微软旗下的Internet Explorer浏览器引擎，虽然MHTML主要用于已被弃用的Internet Explorer浏览器，但该组件也用于Office应用程序，以在 Word、Excel或PowerPoint文档中呈现Web托管的内容。
Microsoft MSHTML存在远程代码执行漏洞。攻击者可利用漏洞通过制作带有恶意 ActiveX控件的Microsoft Office文档并诱导用户打开此文档来利用此漏洞。成功利用此漏洞的远程攻击者可在目标系统上以该用户权限执行任意代码。
Severity: 高
Patch Name: Microsoft MSHTML远程代码执行漏洞的补丁
Patch Description:
MSHTML（又称为Trident）是微软旗下的Internet Explorer浏览器引擎，虽然MHTML主要用于已被弃用的Internet Explorer浏览器，但该组件也用于Office应用程序，以在 Word、Excel或PowerPoint文档中呈现Web托管的内容。
Microsoft MSHTML存在远程代码执行漏洞。攻击者可利用漏洞通过制作带有恶意 ActiveX控件的Microsoft Office文档并诱导用户打开此文档来利用此漏洞。成功利用此漏洞的远程攻击者可在目标系统上以该用户权限执行任意代码。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description:
用户可参考如下供应商提供的安全公告获得补丁信息： https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444
Reference: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444
Impacted products
| Name | ['Microsoft Windows Server 2008 R2', 'Microsoft Windows 7 SP1', 'Microsoft Windows 8.1', 'Microsoft Windows RT 8.1 SP0', 'Microsoft Windows Server 2012 R2', 'Microsoft Windows 10 1607', 'Microsoft Windows Server 2016', 'Microsoft Windows Server 2012', 'Microsoft Windows 10', 'Microsoft Windows Server 2008 SP2', 'Microsoft Windows Server 2019', 'Microsoft Windows Server 2022 null', 'Microsoft Windows 10 1809', 'Microsoft Windows 10 1909', 'Microsoft Windows Server 2004', 'Microsoft Windows 10 2004', 'Microsoft Windows 10 20H2', 'Microsoft Windows Server 20H2', 'Microsoft Windows 10 21H1'] |
|---|
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"cveNumber": "CVE-2021-40444"
}
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"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
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"serverity": "\u9ad8",
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CVE-2021-40444 (GCVE-0-2021-40444)
Vulnerability from cvelistv5
Published
2021-09-15 11:24
Modified
2025-07-30 01:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Remote Code Execution
Summary
<p>Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents.</p>
<p>An attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p>
<p>Microsoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: “Suspicious Cpl File Execution”.</p>
<p>Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.</p>
<p>Please see the <strong>Mitigations</strong> and <strong>Workaround</strong> sections for important information about steps you can take to protect your system from this vulnerability.</p>
<p><strong>UPDATE</strong> September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.</p>
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| ▼ | Microsoft | Windows 10 Version 1809 |
Version: 10.0.0 < 10.0.17763.2183 cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2183:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2183:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2183:*:*:*:*:*:arm64:* |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
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],
"datePublic": "2021-09-07T07:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "\u003cp\u003eMicrosoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents.\u003c/p\u003e\n\u003cp\u003eAn attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\u003c/p\u003e\n\u003cp\u003eMicrosoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: \u201cSuspicious Cpl File Execution\u201d.\u003c/p\u003e\n\u003cp\u003eUpon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.\u003c/p\u003e\n\u003cp\u003ePlease see the \u003cstrong\u003eMitigations\u003c/strong\u003e and \u003cstrong\u003eWorkaround\u003c/strong\u003e sections for important information about steps you can take to protect your system from this vulnerability.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eUPDATE\u003c/strong\u003e September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.\u003c/p\u003e\n"
}
],
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L/E:P/RL:O/RC:C",
"version": "3.1"
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],
"providerMetadata": {
"dateUpdated": "2023-12-28T19:37:23.721Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
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"references": [
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"tags": [
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],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40444"
},
{
"tags": [
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"url": "http://packetstormsecurity.com/files/164210/Microsoft-Windows-MSHTML-Overview.html"
},
{
"tags": [
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],
"url": "http://packetstormsecurity.com/files/165214/Microsoft-Office-Word-MSHTML-Remote-Code-Execution.html"
},
{
"tags": [
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"url": "http://packetstormsecurity.com/files/167317/Microsoft-Office-MSDT-Follina-Proof-Of-Concept.html"
}
],
"title": "Microsoft MSHTML Remote Code Execution Vulnerability"
}
},
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"datePublished": "2021-09-15T11:24:26.000Z",
"dateReserved": "2021-09-02T00:00:00.000Z",
"dateUpdated": "2025-07-30T01:37:58.997Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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