CVE-2021-41368: Microsoft Access ACCDB File Parsing Use-After-Free Remote Code Execution Vulnerability
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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.0.5397.1001Patch KB5002038 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.5239.1001Patch KB5002032
Event History
Frequently Asked Questions
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.
How severe is CVE-2021-41368?
CVE-2021-41368 has a severity rating of 7.8 (high).
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.
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.
How can I fix CVE-2021-41368?
To fix CVE-2021-41368, install the security updates provided by Microsoft for the affected software versions.