# CVE-2009-0557

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; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allow remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka "Object Record Corruption Vulnerability."

- Page: https://www.vulneraibility.com/cve/CVE-2009-0557
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2022-06-08; CISA due date 2022-06-22
- EPSS: 52.84% (percentile 99.0)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-10)
- Weakness: CWE-94
- Published: 2009-06-10

## Affected

- microsoft:office
- microsoft:office_compatibility_pack
- microsoft:office_excel_viewer
- microsoft:office_sharepoint_server
- microsoft:open_xml_file_format_converter

## References

- [other] http://www.vupen.com/english/advisories/2009/1540
- [other] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5564
- [other] http://www.securitytracker.com/id?1022351
- [advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021
- [other] http://osvdb.org/54953
- [other] http://www.securityfocus.com/bid/35241
- [advisory] http://www.us-cert.gov/cas/techalerts/TA09-160A.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-0557

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.