cve 2026 50675

CVE 2026 50675 is an Important-rated Microsoft Excel vulnerability involving malicious spreadsheets. The flaw can allow remote code execution when a user opens specially crafted spreadsheet content, potentially affecting confidentiality, integrity, and availability. Microsoft published the issue on July 14, 2026, with a CVSS 3.1 score of 7.8. Its Local attack vector does not mean the attacker must already have access to the victim’s computer: a malicious file may be delivered remotely, while exploitation occurs locally when Excel processes it. This tag page tracks discussion of the vulnerability, its risk classification, exploit conditions, and the Excel security fix.