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Vulnerability record · CVE-2009-0558 · published 10 June 2009

CVE-2009-0558: Microsoft office code injection vulnerability

Microsoft · Office

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."

9.3 CVSS 2.0 High EPSS 31% · top 1.8% CWE-94 · Code injection
9.3CVSS 2.0 base score
31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
18References
16 Jun 2026Last modified by NVD

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."

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/54954
http://secunia.com/secunia_research/2009-1/ Vendor Advisory
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 US Government Resource
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/ Vendor Advisory
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 US Government Resource
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-0558), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.