What’s Vulnerable › Vulnerabilities

CVE-2011-1275

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-06-16 · updated 2026-06-16
• Weakness: CWE-119

Description

Microsoft Excel 2002 SP3; Office 2004, 2008, and 2011 for Mac; and Open XML File Format Converter for Mac do not properly validate record information during parsing of Excel spreadsheets, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted spreadsheet, aka "Excel Memory Heap Overwrite Vulnerability."

Affected products

• Microsoft Excel 2013 Service Pack 1: 2002-sp3
• Microsoft Office: 2004, 2008, 2011
• Microsoft Open Xml File Format Converter: all versions

References

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-045
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12736
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-045
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12736

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