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Vulnerability record · CVE-2011-1284 · published 13 July 2011

CVE-2011-1284: Microsoft windows 2003 server vulnerability

Microsoft · Windows 2003 Server

Integer overflow in the Client/Server Run-time Subsystem (aka CSRSS) in the Win32 subsystem in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that triggers an incorrect memory assignment for a user transaction, aka "CSRSS Local EOP SrvWriteConsoleOutput Vulnerability."

7.2 CVSS 2.0 High EPSS 2.1% · top 18.7% CWE-189 · CWE-189
7.2CVSS 2.0 base score
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Integer overflow in the Client/Server Run-time Subsystem (aka CSRSS) in the Win32 subsystem in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges or cause a denial of service (memory corruption) via a crafted application that triggers an incorrect memory assignment for a user transaction, aka "CSRSS Local EOP SrvWriteConsoleOutput Vulnerability."

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

Affected products

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

References

LinkTags
http://www.us-cert.gov/cas/techalerts/TA11-193A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-056
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12734
http://www.us-cert.gov/cas/techalerts/TA11-193A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-056
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12734

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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-2011-1284), CISA KEV, FIRST EPSS (scores of 2026-10-16). This page is refreshed as NVD updates the record.