title: Microsoft Exchange Server Remote Code Execution Vulnerability
description: <p>A remote code execution vulnerability exists in Microsoft Exchange server due to improper validation of cmdlet arguments.</p>
<p>An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. Exploitation of the vulnerability requires an authenticated user in a certain Exchange role to be compromised.</p>
<p>The security update addresses the vulnerability by correcting how Microsoft Exchange handles cmdlet arguments.</p>
problem types: Remote Code Execution
affected:
{
vendor: Microsoft
product: Microsoft Exchange Server 2019 Cumulative Update 5
cpes: cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
platforms: x64-based Systems
versions:
version: 15.02.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft Exchange Server 2019 Cumulative Update 6
cpes: cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
platforms: x64-based Systems
versions:
version: 15.02.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft Exchange Server 2016 Cumulative Update 16
cpes: cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
platforms: x64-based Systems
versions:
version: 15.01.0, lessThan: publication, versionType: custom, status: affected
}
{
vendor: Microsoft
product: Microsoft Exchange Server 2016 Cumulative Update 17
cpes: cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
platforms: x64-based Systems
versions:
version: 15.01.0, lessThan: publication, versionType: custom, status: affected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
baseSeverity: HIGH
baseScore: 8.4
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
]