Microsoft Word glTF-SDK Integer Overflow Remote Code Execution Vulnerability [CVE-2021-43875]

CVE number – CVE-2021-43875

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Word. 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 glTF-SDK component. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process.

Microsoft has issued an update to correct this vulnerability.

More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-43875

Jason Davies

UK based technology professional, with an interest in computer security and telecoms.

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