Summary
In the February 2023 Patch Tuesday, Microsoft fixed a remote code execution vulnerability in Microsoft Word, tracked as CVE-2023-21716. The vulnerability is critical, having a CVSS score of 9.8 out of 10, and could allow an attacker to execute code with the same privileges as the victim through rich text format (RTF) documents. If the attacker sends the malicious file over email, the victim doesn’t even have to open the RTF file, as the exploit can be triggered through the email’s preview pane.
Earlier in March, after this issue was addressed by Microsoft, the security researcher that discovered the vulnerability released a proof-of-concept (PoC) on Twitter, written in Python.
