kbrain

CVE-2009-0100

HIGH · CVSS 9.3EPSS 28.8%EU EUVD

Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel in Microsoft Office 2004 and 2008 for Mac; Microsoft Office Excel Viewer and Excel Viewer 2003 SP3; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 do not properly parse the Excel spreadsheet file format, which allows remote attackers to execute arbitrary code via a crafted spreadsheet that contains a malformed object with "an offset and a two-byte value" that trigger a memory calculation error, aka "Memory Corruption Vulnerability."

Key facts

CVSS score
9.3 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-399
EPSS score
28.8% (98th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-0109)
Published
April 15, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0109 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • microsoft / office
  • microsoft / office
  • microsoft / office compatibility pack for word excel ppt 2007
  • microsoft / office excel
  • microsoft / office excel
  • microsoft / office excel
  • microsoft / office excel
  • microsoft / office excel viewer
  • microsoft / office excel viewer

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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