Vulnerability Report

CVE-2011-1283

Title: Microsoft Windows 2003 Server Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2011-1283.

CWE Category CWE-119

Published Date Jul 13, 2011

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 7.2 CVSS v2.0

Exploit Probability (EPSS)

2.12%

Vulnerability Summary

CVE-2011-1283: 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, and Windows Server 2008 Gold and SP2 does not ensure that an unspecified array index has a non-negative value before performing read and write operations, which 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 SrvSetConsoleNumberOfCommand Vulnerability."

Impacted Vendors

microsoft 5

Reference Links

http://www.us-cert.gov/cas/techalerts/TA11-193A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-056 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12362 http://www.us-cert.gov/cas/techalerts/TA11-193A.html https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-056 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12362

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.2

Access Vector

N/A

Authentication

N/A

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2011-1283 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 29, 2026 MODIFIED

Vulnerability data updated via NVD.

April 11, 2025 MODIFIED

Vulnerability data or affected products updated.

July 13, 2011 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.