RCE in Microsoft Visual C\+\+

CVE-2009-0901

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."

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.366 (98.5th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2009-0901: held from 0.366 to 0.366.

EPSS over last 30 days · oldest: 0.366 · newest: 0.366 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2009-0901?
CVE-2009-0901 is a high-severity vulnerability in Microsoft Visual C\+\+, classified under Code Injection. CVSS score: 8.8/10. Published 2009-07-29.
How severe is CVE-2009-0901?
High severity. CVSS v3 base score is 8.8 out of 10.