CVE-2009-0238 KEV
8.8
HIGH · CVSS 3.1 · EPSS 43.2% (pctl 99)
Patch first
On CISA KEV — known exploited in the wild, due 2026-04-28.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 43.21% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | yes — remediate by 2026-04-28 |
| Public exploit | none known |
| Published | 2009-02-25 |
| Last modified | 2026-06-16 |
CISA KEV
| Name | Microsoft Office Remote Code Execution |
|---|---|
| Added | 2026-04-14 |
| Due | 2026-04-28 |
| Vendor / product | Microsoft / Office |
| Ransomware use | none reported |
Affected (5)
| Vendor | Product |
|---|---|
| microsoft | excel |
| microsoft | excel viewer |
| microsoft | office |
| microsoft | office compatibility pack |
| microsoft | office excel viewer |
References
- http://blogs.zdnet.com/security/?p=2658
- http://isc.sans.org/diary.html?storyid=5923
- http://securitytracker.com/id?1021744
- http://www.microsoft.com/technet/security/advisory/968272.mspx
- http://www.securityfocus.com/bid/33870
- http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99
- http://www.us-cert.gov/cas/techalerts/TA09-104A.html
- http://www.vupen.com/english/advisories/2009/1023
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48875
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5968
- http://blogs.zdnet.com/security/?p=2658
- http://isc.sans.org/diary.html?storyid=5923
- http://securitytracker.com/id?1021744
- http://www.microsoft.com/technet/security/advisory/968272.mspx
- http://www.securityfocus.com/bid/33870
- http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99
- http://www.us-cert.gov/cas/techalerts/TA09-104A.html
- http://www.vupen.com/english/advisories/2009/1023
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009
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