title: Microsoft Outlook Denial of Service Vulnerability
description: <p>A denial of service vulnerability exists in Microsoft Outlook software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could cause a remote denial of service against a system.</p>
<p>Exploitation of the vulnerability requires that a specially crafted email be sent to a vulnerable Outlook server.</p>
<p>The security update addresses the vulnerability by correcting how Microsoft Outlook handles objects in memory.</p>
problem types: Denial of Service
affected:
{
vendor: Microsoft
product: Microsoft Office 2019
cpes: cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*
platforms: [32-bit Systems, x64-based Systems]
versions:
version: 19.0.0, lessThan: https://aka.ms/OfficeSecurityReleases, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft 365 Apps for Enterprise
cpes: cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
platforms: [32-bit Systems, x64-based Systems]
versions:
version: 16.0.1, lessThan: https://aka.ms/OfficeSecurityReleases, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft Outlook 2016
cpes: [cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:x86:*:*, cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:x64:*:*]
platforms: [32-bit Systems, x64-based Systems]
versions:
version: 16.0.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft Outlook 2013 Service Pack 1
cpes: [cpe:2.3:a:microsoft:outlook:2013:*:*:*:*:x86:*:*, cpe:2.3:a:microsoft:outlook:2013:*:*:*:*:*:x64:*, cpe:2.3:a:microsoft:outlook:2013:*:*:*:rt:*:*:*]
platforms: [32-bit Systems, x64-based Systems, ARM64-based Systems]
versions:
version: 15.0.0.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft Outlook 2010 Service Pack 2
cpes: cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:*:*
platforms: [32-bit Systems, x64-based Systems]
versions:
version: 13.0.0.0, lessThan: publication, versionType: custom, status: affected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
baseSeverity: MEDIUM
baseScore: 4.7
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
]