AUGUST 4, 2026
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Case File

CVE-2009-0100

HIGH · CVSS 9.3 EPSS 29.04%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-04-15 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 9.3. It affects Microsoft, Office. Its EPSS score suggests a 29.0% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2009-0100
Severity
HIGH
CVSS
9.3
EPSS
29.04%
Microsoft Office

Original NVD Description

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."