What’s Vulnerable › Vulnerabilities

CVE-2009-0558

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 31.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-06-10 · updated 2026-06-16
• Weakness: CWE-94

Description

Array index error in Excel in Microsoft Office 2000 SP3 and Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac, allows remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka "Array Indexing Memory Corruption Vulnerability."

Affected products

• Microsoft Office: 2004, 2008, xp-sp3
• Microsoft Office Compatibility Pack For Word Excel Ppt 2007: all versions
• Microsoft Office Excel: 2000-sp3, 2003-sp3, 2007-sp1, 2007-sp2
• Microsoft Office Excel Viewer: 2003-sp3
• Microsoft Office Sharepoint Server: 2007-sp1, 2007-sp2
• Microsoft Open Xml File Format Converter: all versions

References

• http://osvdb.org/54954
• http://secunia.com/secunia_research/2009-1/
• http://www.securityfocus.com/archive/1/504188/100/0/threaded
• http://www.securityfocus.com/bid/35242
• http://www.securitytracker.com/id?1022351
• http://www.us-cert.gov/cas/techalerts/TA09-160A.html
• http://www.vupen.com/english/advisories/2009/1540
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11525
• http://osvdb.org/54954
• http://secunia.com/secunia_research/2009-1/
• http://www.securityfocus.com/archive/1/504188/100/0/threaded

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