CVE-2009-0561

critical Microsoft
CVSS v3 Base Score
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS Score
65.5%
Exploitation probability in 30 days
Top 1% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
C
Integrity
C
Availability
C
Published: June 10, 2009 (6182 days ago)
Last Modified: April 23, 2026
Vendor: Microsoft
Source: NVD

Description

Integer overflow in Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Excel in 2007 Microsoft Office System SP1 and SP2; Open XML File Format Converter for Mac; Microsoft Office Excel Viewer 2003 SP3; Microsoft Office Excel Viewer; Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2; and Microsoft Office SharePoint Server 2007 SP1 and SP2 allows remote attackers to execute arbitrary code via an Excel file with a Shared String Table (SST) record with a numeric field that specifies an invalid number of unique strings, which triggers a heap-based buffer overflow, aka "Record Integer Overflow Vulnerability."

CWE

CWE-189

Affected Products

microsoft officemicrosoft office compatibility pack for word excel ppt 2007microsoft office excelmicrosoft office excel viewermicrosoft office sharepoint servermicrosoft open xml file format converter

References

🔗 labs.idefense.com 🔗 osvdb.org 🔗 secunia.com 🔗 www.securityfocus.com 🔗 www.securityfocus.com