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CVE-2009-0238CISA KEV

Microsoft Office Remote Code Execution

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.

Product
Office
Added to KEV
14 Apr 2026
Federal remediation due
28 Apr 2026
Known ransomware use
Not reported
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