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Vulnerability record · CVE-2013-3866 · published 11 September 2013

CVE-2013-3866: Microsoft windows 2003 server memory buffer overflow vulnerability

Microsoft · Windows 2003 Server

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

7.2 CVSS 2.0 High EPSS 1.8% · top 22.2% CWE-119 · Memory buffer overflow
7.2CVSS 2.0 base score
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

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

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.us-cert.gov/ncas/alerts/TA13-253A US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-076
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18951
http://www.us-cert.gov/ncas/alerts/TA13-253A US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-076
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18951

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2013-3866), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.