8.4
CVSSv3

CVE-2020-16875

Published: 11/09/2020 Updated: 31/12/2023
CVSS v2 Base Score: 9 | Impact Score: 10 | Exploitability Score: 8
CVSS v3 Base Score: 8.4 | Impact Score: 6 | Exploitability Score: 1.7
VMScore: 801
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Vulnerability Summary

<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>

Vulnerability Trend

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Exploits

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exchange Server Authentication is required to exploit this vulnerability Additionally, the target user must have the "Data Loss Prevention" role assigned and an active mailbox If the user is in the "Compliance Management" or greater "Organization Ma ...

Recent Articles

Microsoft emits 83 security fixes – and miscreants are already exploiting one of the vulns in Windows Defender
The Register • Thomas Claburn in San Francisco • 12 Jan 2021

Redmond keeps us hanging with on-premises Exchange flaw still to be fixed Patch Tuesday brings bug fixes for OpenSSL, IBM, SAP, Kubernetes, Adobe, and Red Hat. And Microsoft, of course

Patch Tuesday Microsoft on Tuesday released updates addressing 83 vulnerabilities in its software, which doesn't include the 13 flaws fixed in its Edge browser last week. That's up from 58 repairs made in December, 2020, a relatively light month by recent standards. Affected applications include: Microsoft Windows, Microsoft Edge (EdgeHTML-based), Microsoft Office and Microsoft Office Services and Web Apps, Microsoft Windows Codecs Library, Visual Studio, SQL Server, Microsoft Malware Protection...

Enjoyed the US Labor Day weekend? Because it's September 2020 and Exchange Server can be pwned via email
The Register • Shaun Nichols in San Francisco • 08 Sep 2020

Don't be so smug, Mac users, you're open to an InDesign project file

A nightmare flaw for Exchange Server headlines this month's Patch Tuesday lineup from Microsoft and others. September sees a bundle of 129 CVE-listed flaws patched by Microsoft. The vast majority of those, 105 in total, are classified as 'important' risks. Another 23 are considered critical bugs, and one is listed as moderate. None of the bugs have public exploit code or in-the-wild attacks yet. Of the nearly two-dozen critical patches, Zero Day Initiative's Dustin Childs says that far and away ...