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Vulnerability record · CVE-2010-0263 · published 10 March 2010

CVE-2010-0263: Microsoft excel code injection vulnerability

Microsoft · Excel

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."

9.3 CVSS 2.0 High EPSS 26% · top 2.1% CWE-94 · Code injection
9.3CVSS 2.0 base score
26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

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."

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://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 US Government Resource
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 US Government Resource
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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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2010-0263), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.