Critical severity9.8NVD Advisory· Published Aug 12, 2009· Updated Jun 16, 2026
CVE-2009-2494
CVE-2009-2494
Description
The Active Template Library (ATL) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allows remote attackers to execute arbitrary code via vectors related to erroneous free operations after reading a variant from a stream and deleting this variant, aka "ATL Object Type Mismatch Vulnerability."
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
17- cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*+ 5 more
- cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x86:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:-:x32:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*
- Range: ≤ Microsoft Windows 2000 SP4, XP SP2/SP3, Server 2003 SP2, Vista Gold/SP1/SP2, Server 2008 Gold/SP2
Patches
Vulnerability mechanics
References
9- www.securityfocus.com/bid/35982nvdPatch
- secunia.com/advisories/36187nvdVendor Advisory
- www.vupen.com/english/advisories/2009/2232nvdVendor Advisory
- www.us-cert.gov/cas/techalerts/TA09-223A.htmlnvdUS Government Resource
- blogs.technet.com/srd/archive/2009/08/11/ms09-037-why-we-are-using-cve-s-already-used-in-ms09-035.aspxnvd
- osvdb.org/56910nvd
- www.securitytracker.com/idnvd
- docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-037nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5708nvd
News mentions
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