CVE-2009-0563

HIGH
7.8
CVSS Score
Published: June 10, 2009 at 05:37 PM UTC
Updated: June 16, 2026 at 11:05 PM UTC
4 products affected across 1 vendorOfficeOffice Compatibility PackOpen XML File Format Converter

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Severity
HIGH7.8
Exploitation
CISA KEV
Exploit prediction
EPSS 60%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score59.6%

EPSS (Exploit Prediction Scoring System) estimates a 59.6% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Jun 8, 2022
Remediation Due
Jun 22, 2022
1588 days overdue

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."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (10)

VDB Entryx_refsource_OSVDBBroken Link
http://osvdb.org/54959
Mailing Listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/504204/100/0/threaded
VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
http://www.securityfocus.com/bid/35188
VDB Entryx_refsource_SECTRACKBroken LinkThird Party Advisory
http://www.securitytracker.com/id?1022356
Third Party Advisoryx_refsource_CERTBroken LinkUS Government Resource
http://www.us-cert.gov/cas/techalerts/TA09-160A.html
VDB Entryx_refsource_VUPENBroken Link
http://www.vupen.com/english/advisories/2009/1546
x_refsource_MISCThird Party AdvisoryVDB Entry
http://www.zerodayinitiative.com/advisories/ZDI-09-035

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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