{"id":"CVE-2009-0901","aliases":["EUVD-2009-0898","GHSA-5q85-2xfh-7gpf"],"status":"published","title":"The Active Template Library (ATL) in Microsoft Visual Studio .NET 2003 SP1, Visual Studio 2005...","description":"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.\"","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.36608,"percentile":0.98506,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-457","CWE-94"],"published":"2009-07-29T17:00:00Z","modified":"2026-06-16T23:06:04Z","products":[{"vendor":"microsoft","product":"visual_c\\+\\+"},{"vendor":"microsoft","product":"visual_studio"},{"vendor":"microsoft","product":"visual_studio_.net"}],"references":[{"url":"http://www.adobe.com/support/security/bulletins/apsb09-11.html","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-66-266108-1","tags":["vendor-advisory","x_refsource_SUNALERT","x_transferred"]},{"url":"http://www.securityfocus.com/bid/35832","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch"]},{"url":"http://www.vupen.com/english/advisories/2009/2034","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA09-223A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource"]},{"url":"http://www.adobe.com/support/security/bulletins/apsb09-13.html","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.novell.com/support/viewContent.do?externalId=7004997\u0026sliceId=1","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA09-286A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government 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Government Resource"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-060","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0901"},{"url":"https://github.com/advisories/GHSA-5q85-2xfh-7gpf"}],"sources":{"cve":[{"id":"CVE-2009-0901","description":"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.\"","status":"published","published":"2009-07-29T17:00:00Z","modified":"2026-05-27T15:34:23.416Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-457"],"updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0898","description":"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.\"","status":"published","published":"2009-07-29T17:00:00Z","modified":"2026-05-27T15:34:23Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:21:04.415835Z"}],"ghsa":[{"id":"GHSA-5q85-2xfh-7gpf","title":"The Active Template Library (ATL) in Microsoft Visual Studio .NET 2003 SP1, Visual Studio 2005...","description":"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.\"","status":"published","published":"2022-05-02T03:19:32Z","modified":"2026-05-27T18:32:34Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-94","CWE-457"],"updated_at":"2026-11-02T15:08:21.006908Z"}],"nvd":[{"id":"CVE-2009-0901","description":"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.\"","status":"published","published":"2009-07-29T17:30:00.953Z","modified":"2026-06-16T23:06:04.1Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-94","CWE-457"],"updated_at":"2026-11-02T14:01:36.200173Z"}]}}