CVE-2021-43209: (0Day) Microsoft 3D Viewer 3MF File Parsing Use-After-Free Remote Code Execution Vulnerability
3D Viewer Remote Code Execution Vulnerability
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft 3D Viewer. 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 3MF 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 at low integrity.
— 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 7.2107.7012.0
Event History
Frequently Asked Questions
What is CVE-2021-43209?
CVE-2021-43209 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Microsoft 3D Viewer.
How does CVE-2021-43209 work?
CVE-2021-43209 works by exploiting a use-after-free vulnerability in the parsing of 3MF files in Microsoft 3D Viewer.
What is the severity of CVE-2021-43209?
The severity of CVE-2021-43209 is rated as high with a CVSS score of 7.8.
How can CVE-2021-43209 be exploited?
CVE-2021-43209 can be exploited by tricking a user into visiting a malicious page or opening a malicious 3MF file.
What should I do to protect myself from CVE-2021-43209?
To protect yourself from CVE-2021-43209, ensure that you have updated Microsoft 3D Viewer to the latest version available.