CVE-2017-11884

CVE-2017-11884 is a memory corruption vulnerability in Microsoft Excel 2016 Click-to-Run that allows an unauthenticated attacker to execute arbitrary code with the privileges of the current user. This high-severity vulnerability (CVSS 7.8) requires user interaction, typically through opening a malicious file, and can lead to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation is reported, its high FAUCET Risk Score and community discussion indicate significant concern.