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CISA known exploited vulnerability

CVE-2009-3129

Microsoft Excel Featheader Record Memory Corruption Vulnerability

SOURCE FACT

Microsoft · Excel

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.

Required action

Apply updates per vendor instructions.

CISA notes

https://nvd.nist.gov/vuln/detail/CVE-2009-3129

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