CVE-2021-31985

CVE-2021-31985 is a high-severity Remote Code Execution vulnerability affecting Microsoft Defender's Malware Protection Engine. With a CVSS score of 8.8, it can be exploited remotely with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability if a user interaction occurs. While there is no public exploit code available (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating its importance despite not being actively exploited in the wild or listed in CISA's KEV catalog.