Is CVE-2011-0098 being actively exploited?

CVE-2011-0098 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-0098?

CVE-2011-0098 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2011-0098

HIGH · CVSS 9.3EPSS 30.5%EU EUVD

Integer signedness error in Microsoft Excel 2002 SP3, 2003 SP3, 2007 SP2, and 2010; Office 2004 and 2008 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; and Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2 allows remote attackers to execute arbitrary code via an XLS file with a large record size, aka "Excel Heap Overflow Vulnerability."

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-189
EPSS score: 30.5% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-0124)
Published: April 13, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-0124 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / excel
microsoft / excel
microsoft / excel
microsoft / excel
microsoft / excel
microsoft / excel viewer
microsoft / office
microsoft / office
microsoft / office compatibility pack
microsoft / open xml file format converter

References

http://osvdb.org/71759
http://secunia.com/advisories/39122(Vendor Advisory)
http://secunia.com/secunia_research/2011-32/(Vendor Advisory)
http://www.securityfocus.com/bid/47235
http://www.securitytracker.com/id?1025337
http://www.us-cert.gov/cas/techalerts/TA11-102A.html(US Government Resource)
http://www.vupen.com/english/advisories/2011/0940(Vendor Advisory)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-021
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12034

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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