CVE-2009-2494

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 42.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-08-12 · updated 2026-06-16
Weakness: CWE-94

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."

Affected products

Microsoft Windows 2000: all versions
Microsoft Windows Server 2003: all versions
Microsoft Windows Server 2008: all versions
Microsoft Windows Vista: all versions
Microsoft Windows XP Service Pack 3: all versions

References

http://blogs.technet.com/srd/archive/2009/08/11/ms09-037-why-we-are-using-cve-s-already-used-in-ms09-035.aspx
http://osvdb.org/56910
http://secunia.com/advisories/36187
http://www.securityfocus.com/bid/35982
http://www.securitytracker.com/id?1022712
http://www.us-cert.gov/cas/techalerts/TA09-223A.html
http://www.vupen.com/english/advisories/2009/2232
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-037
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5708
http://blogs.technet.com/srd/archive/2009/08/11/ms09-037-why-we-are-using-cve-s-already-used-in-ms09-035.aspx
http://osvdb.org/56910
http://secunia.com/advisories/36187

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