CVE-2009-0563: Microsoft Office Buffer Overflow Vulnerability

CISA Known Exploited Vulnerabilities

Name

Microsoft Office Buffer Overflow Vulnerability

Vendor

Microsoft

Product

Office

Added to the catalog

2022-06-08

Due date for US federal agencies

2022-06-22

Weaknesses

CWE-119

Catalog version

2026.10.30

Microsoft Office contains a buffer overflow vulnerability that allows remote attackers to execute code via a Word document with a crafted tag containing an invalid length field.

Required action (CISA)

Apply updates per vendor instructions.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://nvd.nist.gov/vuln/detail/CVE-2009-0563

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2009-06-10T18:00:00.313

Last modified

2026-06-16T23:05:18.980

Weaknesses

CWE-787

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."

References

• http://osvdb.org/54959 (Broken Link)
• http://www.securityfocus.com/archive/1/504204/100/0/threaded (Broken Link, Third Party Advisory, VDB Entry)
• http://www.securityfocus.com/bid/35188 (Broken Link, Third Party Advisory, VDB Entry)
• http://www.securitytracker.com/id?1022356 (Broken Link, Third Party Advisory, VDB Entry)
• http://www.us-cert.gov/cas/techalerts/TA09-160A.html (Broken Link, Third Party Advisory, US Government Resource)
• http://www.vupen.com/english/advisories/2009/1546 (Broken Link)
• http://www.zerodayinitiative.com/advisories/ZDI-09-035 (Third Party Advisory, VDB Entry)
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-027 (Patch, Vendor Advisory)
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6133 (Broken Link)
• http://osvdb.org/54959 (Broken Link)
• http://www.securityfocus.com/archive/1/504204/100/0/threaded (Broken Link, Third Party Advisory, VDB Entry)
• http://www.securityfocus.com/bid/35188 (Broken Link, Third Party Advisory, VDB Entry)
• http://www.securitytracker.com/id?1022356 (Broken Link, Third Party Advisory, VDB Entry)
• http://www.us-cert.gov/cas/techalerts/TA09-160A.html (Broken Link, Third Party Advisory, US Government Resource)
• http://www.vupen.com/english/advisories/2009/1546 (Broken Link)
• http://www.zerodayinitiative.com/advisories/ZDI-09-035 (Third Party Advisory, VDB Entry)
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-027 (Patch, Vendor Advisory)
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6133 (Broken Link)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-0563 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:28.906Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2009-0563

CVE record

Assigner

microsoft

State

PUBLISHED

Published

2009-06-10T17:37:00.000Z

Updated

2025-10-22T00:05:55.003Z

Problem types

n/a

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."

References

• oval:org.mitre.oval:def:6133
• 35188
• 54959
• http://www.zerodayinitiative.com/advisories/ZDI-09-035
• TA09-160A
• 1022356
• MS09-027
• ADV-2009-1546
• 20090610 ZDI-09-035: Microsoft Word Document Stack Based Buffer Overflow Vulnerability

Read on 2026-11-03T00:12:12.292Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2009/0xxx/CVE-2009-0563.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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