CVE-2009-0561

Integer overflow in Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Excel in 2007 Microsoft Office System SP1 and SP2; Open XML File Format Converter for Mac; Microsoft Office Excel Viewer 2003 SP3; Microsoft Office Excel Viewer; Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2; and Microsoft Office SharePoint Server 2007 SP1 and SP2 allows remote attackers to execute arbitrary code via an Excel file with a Shared String Table (SST) record with a numeric field that specifies an invalid number of unique strings, which triggers a heap-based buffer overflow, aka "Record Integer Overflow Vulnerability."

• CWE-189

• http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=805
• http://osvdb.org/54957
• http://secunia.com/secunia_research/2009-12/Vendor Advisory
• http://www.securityfocus.com/archive/1/504190/100/0/threaded
• http://www.securityfocus.com/bid/35245
• http://www.securitytracker.com/id?1022351
• http://www.us-cert.gov/cas/techalerts/TA09-160A.htmlUS Government Resource
• http://www.vupen.com/english/advisories/2009/1540Vendor Advisory
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5925
• http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=805
• http://osvdb.org/54957
• http://secunia.com/secunia_research/2009-12/Vendor Advisory
• http://www.securityfocus.com/archive/1/504190/100/0/threaded
• http://www.securityfocus.com/bid/35245
• http://www.securitytracker.com/id?1022351
• http://www.us-cert.gov/cas/techalerts/TA09-160A.htmlUS Government Resource
• http://www.vupen.com/english/advisories/2009/1540Vendor Advisory
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5925

Published

Jun 10, 2009

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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