CVE-2009-2493
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; and Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2; does not properly restrict use of OleLoadFromStream in instantiating objects from data streams, which allows remote attackers to execute arbitrary code via a crafted HTML document with an ATL (1) component or (2) control, related to ATL headers and bypassing security policies, aka "ATL COM Initialization Vulnerability."
Key facts
- CVSS score
- 8.8 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-264
- EPSS score
- 37.8% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-2488)
- Published
- July 29, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-2488 in the EU Vulnerability Database. Last updated in EUVD on May 27, 2026.
View on the EU Vulnerability DatabaseAffected products
- microsoft / visual c++
- microsoft / visual c++
- microsoft / visual c++
- microsoft / visual studio
- microsoft / visual studio
- microsoft / visual studio
- microsoft / visual studio
- microsoft / windows 2000
- microsoft / windows 2003 server
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows vista
- microsoft / windows vista
- microsoft / windows vista
- microsoft / windows xp
- microsoft / windows xp
Certified products that may be affected
21 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Microsoft Windows Server 2008 R2 Hyper-V Release 6.1.7600 - Microsoft Corporation - Common Criteria BSI-DSZ-CC-0755-2012 - archived
- Microsoft Windows 7, Microsoft Windows Server 2008 R2 - Microsoft Corporation - Common Criteria CCEVS-VR-10390-2010 - archived
- Windows Server 2008 R2 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1339 - historical
- Windows Server 2008 R2 Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1337 - historical
- Microsoft Windows Server 2008 R2 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1335 - historical
See all 21 in the Security Certifications Explorer.
References
- http://blogs.technet.com/srd/archive/2009/08/11/ms09-037-why-we-are-using-cve-s-already-used-in-ms09-035.aspx(Broken Link)
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00002.html(Third Party Advisory)
- http://marc.info/?l=bugtraq&m=126592505426855&w=2(Third Party Advisory)
- http://secunia.com/advisories/35967
- http://secunia.com/advisories/36187
- http://secunia.com/advisories/36374
- http://secunia.com/advisories/36746
- http://secunia.com/advisories/38568
- http://secunia.com/advisories/41818
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-264648-1(Broken Link)
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-266108-1(Broken Link)
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020775.1-1(Broken Link)
- http://www.adobe.com/support/security/advisories/apsa09-04.html(Patch, Third Party Advisory)
- http://www.adobe.com/support/security/bulletins/apsb09-10.html(Third Party Advisory)
- http://www.adobe.com/support/security/bulletins/apsb09-11.html(Patch, Third Party Advisory)
- http://www.adobe.com/support/security/bulletins/apsb09-13.html(Third Party Advisory)
- http://www.novell.com/support/viewContent.do?externalId=7004997&sliceId=1(Third Party Advisory)
- http://www.openoffice.org/security/cves/CVE-2009-2493.html(Third Party Advisory)
- http://www.us-cert.gov/cas/techalerts/TA09-195A.html(Third Party Advisory, US Government Resource)
- http://www.us-cert.gov/cas/techalerts/TA09-223A.html(Third Party Advisory, US Government Resource)
- http://www.us-cert.gov/cas/techalerts/TA09-286A.html(Third Party Advisory, US Government Resource)
- http://www.us-cert.gov/cas/techalerts/TA09-342A.html(Third Party Advisory, US Government Resource)
- http://www.vupen.com/english/advisories/2009/2034
- http://www.vupen.com/english/advisories/2009/2232
- http://www.vupen.com/english/advisories/2010/0366
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-035
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-037
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-055
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-060
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-072
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6245
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6304
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6421
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6473
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6621
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6716
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain