VULNERABILITY INTELLIGENCE

CVE-2009-3129

CVSS score7.8 HIGH
EPSS probability84.03%
CISA KEVKnown exploited vulnerability
Published2009-11-11
Last modified2026-06-16
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Microsoft Excel Featheader Record Memory Corruption Vulnerability

Vendor / product: Microsoft / Excel

Description

Microsoft Office Excel 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Office Excel Viewer 2003 SP3; Office Excel Viewer SP1 and SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 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, aka "Excel Featheader Record Memory Corruption Vulnerability."

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references