CVE-2009-3129

HighActively exploited (CISA KEV)

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."

SeverityHigh

CVSS7.8

Exploit probability—

Product

Microsoft Excel

PublishedNov 11, 2009

First seenNov 11, 2009

Added to KEVMar 3, 2022

Weakness typeCWE-787Out-of-bounds write

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Mar 24, 2022

Vendor advisories

docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-067

Affected products

Product	Affected versions	Fixed in
microsoft excel	2002, 2003, 2007	—
microsoft excel_viewer	No range specified, 2003	—
microsoft office	2004, 2008	—
microsoft open_xml_file_format_converter	No range specified	—

Check your version

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