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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Current Description
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.
An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.
The security update addresses the vulnerability by modifying how MSHTML engine validates input.
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.An attacker could execute arbitrary code in the context of the current user, aka 'MSHTML Engine Remote Code Execution Vulnerability'.
Metrics
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vector strings. CVSS information contributed by other sources is also
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CVE Modified by Microsoft Corporation6/16/2026 11:01:46 PM
Action
Type
Old Value
New Value
Added
Affected
[{"vendor":"Microsoft","product":"Internet Explorer 11","cpes":["cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*"],"platforms":["Windows 10 Version 2004 for 32-bit Systems","Windows 10 Version 2004 for ARM64-based Systems","Windows 10 Version 2004 for x64-based Systems","Windows 10 Version 1803 for 32-bit Systems","Windows 10 Version 1803 for x64-based Systems","Windows 10 Version 1803 for ARM64-based Systems","Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for x64-based Systems","Windows 10 Version 1809 for ARM64-based Systems","Windows Server 2019","Windows 10 Version 1909 for 32-bit Systems","Windows 10 Version 1909 for x64-based Systems","Windows 10 Version 1909 for ARM64-based Systems","Windows 10 Version 1709 for 32-bit Systems","Windows 10 Version 1709 for x64-based Systems","Windows 10 Version 1709 for ARM64-based Systems","Windows 10 Version 1903 for 32-bit Systems","Windows 10 Version 1903 for x64-based Systems","Windows 10 Version 1903 for ARM64-based Systems","Windows 10 for 32-bit Systems","Windows 10 for x64-based Systems","Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows Server 2016","Windows 7 for 32-bit Systems Service Pack 1","Windows 7 for x64-based Systems Service Pack 1","Windows 8.1 for 32-bit systems","Windows 8.1 for x64-based systems","Windows RT 8.1","Windows Server 2008 R2 for x64-based Systems Service Pack 1","Windows Server 2012","Windows Server 2012 R2"],"versions":[{"version":"1.0.0","lessThan":"publication","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Internet Explorer 9","cpes":["cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*"],"platforms":["Windows Server 2008 for 32-bit Systems Service Pack 2","Windows Server 2008 for x64-based Systems Service Pack 2"],"versions":[{"version":"1.0.0","lessThan":"publication","versionType":"custom","status":"affected"}]}]
CVE Modified by Microsoft Corporation2/23/2026 1:25:40 PM
Action
Type
Old Value
New Value
Changed
Description
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.
An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.
The security update addresses the vulnerability by modifying how MSHTML engine validates input.
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.
An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.
The security update addresses the vulnerability by modifying how MSHTML engine validates input.
CVE Modified by Microsoft Corporation5/14/2024 2:40:40 AM
Action
Type
Old Value
New Value
CPE Deprecation Remap by NIST4/16/2024 3:22:42 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:microsoft:internet_explorer:9:-:*:*:*:*:*:*
OR
*cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
CVE Modified by Microsoft Corporation1/18/2024 7:15:18 PM
Action
Type
Old Value
New Value
Changed
Description
<p>A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.</p>
<p>An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p>
<p>In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.</p>
<p>The security update addresses the vulnerability by modifying how MSHTML engine validates input.</p>
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.
An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.
The security update addresses the vulnerability by modifying how MSHTML engine validates input.
CVE Modified by Microsoft Corporation1/03/2024 9:15:26 PM
Action
Type
Old Value
New Value
Changed
Description
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.An attacker could execute arbitrary code in the context of the current user, aka 'MSHTML Engine Remote Code Execution Vulnerability'.
<p>A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input.</p>
<p>An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p>
<p>In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability.</p>
<p>The security update addresses the vulnerability by modifying how MSHTML engine validates input.</p>
Added
CVSS V3.1
Microsoft Corporation AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE Remap by NIST7/21/2021 7:39:23 AM
Action
Type
Old Value
New Value
Changed
CWE
CWE-20
NVD-CWE-noinfo
CPE Deprecation Remap by NIST9/28/2020 8:58:11 AM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:x64:*:*
OR
*cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
Initial Analysis by NIST8/24/2020 8:30:47 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Added
CVSS V2
NIST (AV:N/AC:H/Au:N/C:C/I:C/A:C)
Added
CWE
NIST CWE-20
Added
CPE Configuration
AND
OR
*cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*
OR
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:x64:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:a:microsoft:internet_explorer:9:-:*:*:*:*:*:*
OR
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
Changed
Reference Type
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1567 No Types Assigned
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