cve 2026 58618

The cve 2026 58618 tag covers guidance on a high-severity Microsoft Excel vulnerability that may allow remote code execution when a user opens or processes a malicious workbook locally. Content associated with this tag explains the difference between Microsoft’s remote code execution classification and the CVSS attack vector, which identifies local processing in Excel as the exploitation point. The discussion focuses on the risk posed by weaponized files, how an attacker could deliver them remotely, and the importance of updating Excel to block exploitation. This archive is useful for readers tracking the vulnerability’s impact, technical classification, and recommended Microsoft Office security update.