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CVE-2009-2494

CRITICALCVSS 9.8/10EPSS 42.33%

Last modified

CVE-2009-2494 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.". EPSS estimates a 42.33% chance of exploitation in the next 30 days.

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."

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
42.33%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows 2000All versionsSp4
MicrosoftWindows Server 2003All versionsSp2
MicrosoftWindows Server 2008All versions—
MicrosoftWindows VistaAll versions—
MicrosoftWindows XpAll versionsSp2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-2494?
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."
How severe is CVE-2009-2494?
CVE-2009-2494 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 42.33% probability of exploitation in the next 30 days.
How do I fix CVE-2009-2494?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2494?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST