CVE-2009-0563

CVE-2009-0563 is a high-severity (CVSS 7.8) vulnerability in Microsoft Office. CISA added it to the Known Exploited Vulnerabilities catalog on June 8, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 22, 2022. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

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."

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

• http://osvdb.org/54959
• http://www.securityfocus.com/archive/1/504204/100/0/threaded
• http://www.securityfocus.com/bid/35188
• http://www.securitytracker.com/id?1022356
• http://www.us-cert.gov/cas/techalerts/TA09-160A.html
• http://www.vupen.com/english/advisories/2009/1546
• http://www.zerodayinitiative.com/advisories/ZDI-09-035
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-027