CVE-2009-0901

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Summary

CVECVE-2009-0901
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-07-29 17:30:00 UTC
Updated2026-05-27 17:16:16 UTC
DescriptionThe 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."

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.825340000 probability, percentile 0.992520000 (date 2026-06-01)

Problem Types: CWE-94 | CWE-457 | n/a | CWE-457 CWE-457 Use of Uninitialized Variable

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.0[email protected]Primary9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft Visual C 2005 sp1_redistribution_pkg All All
Application Microsoft Visual C 2008 redistribution_pkg All All
Application Microsoft Visual C 2008 sp1_redistribution_pkg All All
Application Microsoft Visual Studio 2005 sp1 All All
Application Microsoft Visual Studio 2005 sp1 64_bit_hosted_visual_c\+\+_tools All
Application Microsoft Visual Studio 2008 All All All
Application Microsoft Visual Studio 2008 sp1 All All
Application Microsoft Visual Studio .net 2003 sp1 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
sunsolve.sun.com/search/document.do af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Adobe - Security Bulletins: APSB09-11 Security Update available for Shockwave Player af854a3a-2127-422b-91ae-364da2661108 www.adobe.com Patch
US-CERT Technical Cyber Security Alert TA09-286A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Microsoft Security Bulletin MS09-060 - Critical | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
Microsoft Windows Various Components ATL Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Adobe - Security Bulletins: APSB09-10 Security Updates available for Adobe Flash Player, Adobe Reader and Acrobat af854a3a-2127-422b-91ae-364da2661108 www.adobe.com
Adobe - Security Bulletins: APSB09-13 Security Update available for Flex SDK af854a3a-2127-422b-91ae-364da2661108 www.adobe.com
'[security bulletin] HPSBMA02488 SSRT100013 rev.1 - HP ProLiant Support Pack 8.30 for Windows, Remote' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
US-CERT Technical Cyber Security Alert TA09-223A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
Adobe Flex Multiple Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
www.novell.com/support/viewContent.do af854a3a-2127-422b-91ae-364da2661108 www.novell.com
MS09-037: Why we are using CVE's already used in MS09-035 - Security Research & Defense - Site Home - TechNet Blogs af854a3a-2127-422b-91ae-364da2661108 blogs.technet.com
Microsoft Security Bulletin MS09-037 - Critical | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
US-CERT Technical Cyber Security Alert TA09-195A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
Microsoft Visual Studio Active Template Library Three Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Microsoft Security Bulletin MS09-035 - Moderate | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Novell GroupWise Multiple Vulnerabilities - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
Adobe - Security Advisories: APSA09-04 - Security Advisory for Adobe Flash Player af854a3a-2127-422b-91ae-364da2661108 www.adobe.com Patch
Microsoft Visual Studio ATL 'VariantClear()' Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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