On 7 Sep, Microsoft has reported a vulnerability has recently been reported affecting various versions of Windows and Windows Servers by using specially-crafted Microsoft Office documents.
An attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
Microsoft has released https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444 to track the information.
Published on: 9 Sep 2021
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