Vulnerability Report

CVE-2011-1236

Title: Microsoft Windows 2003 Server Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2011-1236.

CWE Category CWE-416
Published Date Apr 13, 2011
Modified Date Jun 16, 2026
Exploit Status Not Found
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
1.17%

Vulnerability Summary

CVE-2011-1236: 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/71751 http://secunia.com/advisories/44156 http://support.avaya.com/css/P8/documents/100133352 http://www.securityfocus.com/bid/47213 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/66418 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12478 http://blogs.technet.com/b/srd/archive/2011/04/12/ms11-034-addressing-vulnerabilities-in-the-win32k-subsystem.aspx http://osvdb.org/71751 http://secunia.com/advisories/44156 http://support.avaya.com/css/P8/documents/100133352 http://www.securityfocus.com/bid/47213 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/66418 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12478
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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-2011-1236 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

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 LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.