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CVE-2009-0238

8.8 · HIGHActively Exploited

Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold and SP3; Excel Viewer; Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1; and Excel…

Published Feb 25, 2009microsoftCWE-94EPSS 42.94%

Overview

CVE-2009-0238 is a high-severity vulnerability affecting microsoft excel. It was published on February 25, 2009 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.8, 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 Viewer 2003 Gold and SP3; Excel Viewer; Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1; and Excel in Microsoft Office 2004 and 2008 for Mac allow remote attackers to execute arbitrary code via a crafted Excel document that triggers an access attempt on an invalid object, as exploited in the wild in February 2009 by Trojan.Mdropper.AC.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update excel 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

Refblogs.zdnet.com/security/?p=2658Refisc.sans.org/diary.html?storyid=5923Refsecuritytracker.com/id?1021744Refwww.microsoft.com/technet/security/advisory/968272.mspxRefwww.securityfocus.com/bid/33870Refwww.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99Refwww.us-cert.gov/cas/techalerts/TA09-104A.htmlRefwww.vupen.com/english/advisories/2009/1023Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009Refexchange.xforce.ibmcloud.com/vulnerabilities/48875

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0238?

CVE-2009-0238 is a high-severity vulnerability affecting microsoft excel. It was published on February 25, 2009 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2009-0238?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2009-0238?

Check the references section for vendor advisories and patches from microsoft. Update excel 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-2009-0238?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0238 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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