CISA description
Microsoft Office Excel allows remote attackers to execute arbitrary code via a spreadsheet with a FEATHEADER record containing an invalid cbHdrData size element that affects a pointer offset.
Microsoft · Excel
Microsoft Excel Featheader Record Memory Corruption Vulnerability
Microsoft Office Excel allows remote attackers to execute arbitrary code via a spreadsheet with a FEATHEADER record containing an invalid cbHdrData size element that affects a pointer offset.
Apply updates per vendor instructions.
Vulnerability data triggers these controls during assessment and continuous monitoring.