CVE-2009-0238

high

Description

Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold and SP3; Excel Viewer; Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1; and Excel in Microsoft Office 2004 and 2008 for Mac allow remote attackers to execute arbitrary code via a crafted Excel document that triggers an access attempt on an invalid object, as exploited in the wild in February 2009 by Trojan.Mdropper.AC.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/48875

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009

https://www.theregister.com/2026/04/15/excel_exploit/

https://securityaffairs.com/190852/hacking/u-s-cisa-adds-microsoft-sharepoint-server-and-microsoft-office-excel-flaws-to-its-known-exploited-vulnerabilities-catalog.html

https://www.cisa.gov/news-events/alerts/2026/04/14/cisa-adds-two-known-exploited-vulnerabilities-catalog

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-0238

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5968

http://www.vupen.com/english/advisories/2009/1023

http://www.us-cert.gov/cas/techalerts/TA09-104A.html

http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99

http://www.securityfocus.com/bid/33870

http://www.microsoft.com/technet/security/advisory/968272.mspx

http://securitytracker.com/id?1021744

http://isc.sans.org/diary.html?storyid=5923

http://blogs.zdnet.com/security/?p=2658

Details

Source: Mitre, NVD

Published: 2009-02-25

Updated: 2026-06-16

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 9.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.43063