What’s Vulnerable › Vulnerabilities

CVE-2010-0263

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 25.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2010-03-10 · updated 2026-06-16
• Weakness: CWE-94

Description

Microsoft Office Excel 2007 SP1 and SP2; Office 2008 for Mac; Open XML File Format Converter for Mac; Office Excel Viewer SP1 and SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2; and Office SharePoint Server 2007 SP1 and SP2 do not validate ZIP headers during decompression of Open XML (.XLSX) documents, which allows remote attackers to execute arbitrary code via a crafted document that triggers access to uninitialized memory locations, aka "Microsoft Office Excel XLSX File Parsing Code Execution Vulnerability."

Affected products

• Microsoft Excel 2013 Service Pack 1: 2002-sp3, 2003-sp3, 2007-sp1, 2007-sp2
• Microsoft Office: 2004, 2008
• Microsoft Office Compatibility Pack: 2007-sp1, 2007-sp2
• Microsoft Office Excel Viewer: all versions
• Microsoft Office Sharepoint Server: 2007-sp1, 2007-sp2
• Microsoft Open Xml File Format Converter: all versions

References

• http://www.securityfocus.com/archive/1/509979/100/0/threaded
• http://www.securitytracker.com/id?1023698
• http://www.us-cert.gov/cas/techalerts/TA10-068A.html
• http://www.zerodayinitiative.com/advisories/ZDI-10-025/
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-017
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8407
• http://www.securityfocus.com/archive/1/509979/100/0/threaded
• http://www.securitytracker.com/id?1023698
• http://www.us-cert.gov/cas/techalerts/TA10-068A.html
• http://www.zerodayinitiative.com/advisories/ZDI-10-025/
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-017
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8407

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