CVE-2021-41368: Microsoft Access ACCDB File Parsing Use-After-Free Remote Code Execution Vulnerability

Published Nov 9, 2021
·
Updated

Microsoft Access Remote Code Execution Vulnerability

Other sources

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Access. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of ACCDB database files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

ZDI

Affected Software

18 affected componentsFixes available
Microsoft Office 2013
Microsoft Office 2013
Microsoft Office 2019 for 32-bit editions
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office 2016
Microsoft Office 2016
Microsoft 365 Apps for Enterprise
Microsoft 365 Apps for Enterprise
Microsoft 365 Apps
Microsoft Office=2013-sp1
Microsoft Office=2013-sp1
Microsoft Office=2016
Microsoft Office=2019
Microsoft Office Long Term Servicing Channel=2021
Microsoft Access
Microsoft Office 2013 RT

Event History

Nov 9, 2021
CVE Published
via Microsoft·08:00 AM
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
Nov 10, 2021
CVE Published
via MITRE·12:46 AM
Data Sourced
via MITRE·12:46 AM
DescriptionSeverity
Mar 18, 2025
Advisory Published
via ZDI·08:01 AM
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Frequently Asked Questions

1

What is CVE-2021-41368?

CVE-2021-41368 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft Access.

2

How severe is CVE-2021-41368?

CVE-2021-41368 has a severity rating of 7.8 (high).

3

Which software versions are affected by CVE-2021-41368?

CVE-2021-41368 affects various versions of Microsoft Office, including Office 2019 for 32-bit editions, Office 2013, Office 2013 RT, Office 2016, Office LTSC 2021, and Microsoft 365 Apps for Enterprise.

4

What is the required user interaction to exploit CVE-2021-41368?

To exploit CVE-2021-41368, user interaction is required, such as visiting a malicious page or opening a malicious file.

5

How can I fix CVE-2021-41368?

To fix CVE-2021-41368, install the security updates provided by Microsoft for the affected software versions.

Contact

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