# CVE-2009-2495

## Summary

- **CVE ID:** CVE-2009-2495
- **Severity:** MEDIUM
- **CVSS Score:** 7.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
- **CWE:** N/A
- **Published:** Jul 29, 2009
- **Last Modified:** May 27, 2026

## Description

The Active Template Library (ATL) in Microsoft Visual Studio .NET 2003 SP1, Visual Studio 2005 SP1 and 2008 Gold and SP1, and Visual C++ 2005 SP1 and 2008 Gold and SP1 does not properly enforce string termination, which allows remote attackers to obtain sensitive information via a crafted HTML document with an ATL (1) component or (2) control that triggers a buffer over-read, related to ATL headers and buffer allocation, aka "ATL Null String Vulnerability."

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://sunsolve.sun.com/search/document.do?assetkey=1-66-266108-1)
- [CNA](http://www.vupen.com/english/advisories/2009/2034)
- [CNA](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7573)
- [CNA](http://www.adobe.com/support/security/bulletins/apsb09-13.html)
- [CNA](http://www.novell.com/support/viewContent.do?externalId=7004997&sliceId=1)
- [CNA](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6478)
- [CNA](http://www.us-cert.gov/cas/techalerts/TA09-286A.html)
- [CNA](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-035)
- [CNA](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6305)
- [CNA](http://marc.info/?l=bugtraq&m=126592505426855&w=2)
- [CNA](http://www.adobe.com/support/security/bulletins/apsb09-10.html)
- [CNA](http://secunia.com/advisories/36374)
- [CNA](http://secunia.com/advisories/36746)
- [CNA](http://secunia.com/advisories/35967)
- [CNA](http://www.us-cert.gov/cas/techalerts/TA09-195A.html)
- [CNA](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-060)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 45.67%
- **EPSS Percentile:** 97.5

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._