Vulnerability Report

CVE-2011-1237

Title: Microsoft Windows 2003 Server Auth Bypass

Auth Bypass

Proof Of Concept

PoC Available for CVE-2011-1237

CWE Category CWE-399
Published Date Apr 13, 2011
Modified Date Jun 16, 2026
Exploit Status Available
Score 7.2 CVSS v2.0
Exploit Probability (EPSS)
2.69%

Vulnerability Summary

CVE-2011-1237: Use-after-free vulnerability in win32k.sys in the kernel-mode drivers 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 via a crafted application that leverages incorrect driver object management, a different vulnerability than other "Vulnerability Type 1" CVEs listed in MS11-034, aka "Win32k Use After Free Vulnerability."

Impacted Vendors

M
microsoft 6

Reference Links

http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx http://osvdb.org/71752 http://secunia.com/advisories/44156 http://support.avaya.com/css/P8/documents/100133352 http://www.securityfocus.com/bid/47214 http://www.securitytracker.com/id?1025345 http://www.us-cert.gov/cas/techalerts/TA11-102A.html http://www.vupen.com/english/advisories/2011/0952 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034 https://exchange.xforce.ibmcloud.com/vulnerabilities/66419 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12467 http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx http://osvdb.org/71752 http://secunia.com/advisories/44156 http://support.avaya.com/css/P8/documents/100133352 http://www.securityfocus.com/bid/47214 http://www.securitytracker.com/id?1025345 http://www.us-cert.gov/cas/techalerts/TA11-102A.html http://www.vupen.com/english/advisories/2011/0952 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-034 https://exchange.xforce.ibmcloud.com/vulnerabilities/66419 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12467
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-2011-1237 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/BrunoPujos/CVE-2011-1237
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

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.