CVE-2009-0901
HIGHEPSS 99th pctlDescription
The Active Template Library (ATL) in Microsoft Visual Studio .NET 2003 SP1, Visual Studio 2005 SP1 and 2008 Gold, 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 prevent VariantClear calls on an uninitialized VARIANT, which allows remote attackers to execute arbitrary code via a malformed stream to an ATL (1) component or (2) control, related to ATL headers and error handling, aka "ATL Uninitialized Object Vulnerability."
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 99% of all known CVEs.
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://marc.info/?l=bugtraq&m=126592505426855&w=2
- http://secunia.com/advisories/35967
- http://secunia.com/advisories/36187
- http://secunia.com/advisories/36374
- http://secunia.com/advisories/36746
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-266108-1
- http://www.adobe.com/support/security/advisories/apsa09-04.html
- http://www.adobe.com/support/security/bulletins/apsb09-10.html
- http://www.adobe.com/support/security/bulletins/apsb09-11.html
- http://www.adobe.com/support/security/bulletins/apsb09-13.html
- http://www.novell.com/support/viewContent.do?externalId=7004997&sliceId=1
- http://www.securityfocus.com/bid/35832
- http://www.us-cert.gov/cas/techalerts/TA09-195A.html
- http://www.us-cert.gov/cas/techalerts/TA09-223A.html
- http://www.us-cert.gov/cas/techalerts/TA09-286A.html
- http://www.vupen.com/english/advisories/2009/2034
- http://www.vupen.com/english/advisories/2009/2232
- 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/ms09-060
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6289
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6311
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6373
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7581
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-27.