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CVE-2009-0100

9.3 · HIGH

Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel in Microsoft Office 2004 and 2008 for Mac; Microsoft Office Excel Viewer and Excel Viewer 2003 SP3; and Microsoft Office Com…

Published Apr 15, 2009microsoftCWE-399EPSS 28.83%

Overview

CVE-2009-0100 is a high-severity vulnerability affecting microsoft office. It was published on April 15, 2009 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel in Microsoft Office 2004 and 2008 for Mac; Microsoft Office Excel Viewer and Excel Viewer 2003 SP3; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 do not properly parse the Excel spreadsheet file format, which allows remote attackers to execute arbitrary code via a crafted spreadsheet that contains a malformed object with "an offset and a two-byte value" that trigger a memory calculation error, aka "Memory Corruption Vulnerability."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update office to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refosvdb.org/53665Refwww.fortiguardcenter.com/advisory/FGA-2009-16.htmlRefwww.securityfocus.com/archive/1/502696/100/0/threadedRefwww.securitytracker.com/id?1022039Refwww.us-cert.gov/cas/techalerts/TA09-104A.htmlRefwww.vupen.com/english/advisories/2009/1023Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6043Refosvdb.org/53665Refwww.fortiguardcenter.com/advisory/FGA-2009-16.html

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0100?

CVE-2009-0100 is a high-severity vulnerability affecting microsoft office. It was published on April 15, 2009 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2009-0100?

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-0100?

Check the references section for vendor advisories and patches from microsoft. Update office to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-0100?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0100 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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