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CVE-2009-0563

7.8 · HIGHActively Exploited

Stack-based buffer overflow in Microsoft Office Word 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; Microsoft Office Word…

Published Jun 10, 2009microsoftCWE-787EPSS 62.83%

Overview

CVE-2009-0563 is a high-severity vulnerability affecting microsoft office. It was published on June 10, 2009 and has a CVSS 3.1 base score of 7.8 (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 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Stack-based buffer overflow in Microsoft Office Word 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; Microsoft Office Word Viewer 2003 SP3; Microsoft Office Word Viewer; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a Word document with a crafted tag containing an invalid length field, aka "Word Buffer Overflow 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/54959Refwww.securityfocus.com/archive/1/504204/100/0/threadedRefwww.securityfocus.com/bid/35188Refwww.securitytracker.com/id?1022356Refwww.us-cert.gov/cas/techalerts/TA09-160A.htmlRefwww.vupen.com/english/advisories/2009/1546Refwww.zerodayinitiative.com/advisories/ZDI-09-035Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-027Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6133Refosvdb.org/54959

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0563?

CVE-2009-0563 is a high-severity vulnerability affecting microsoft office. It was published on June 10, 2009 and has a CVSS 3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2009-0563?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-0563?

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-2009-0563?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0563 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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