Vulnerability Report

CVE-2011-1985

Title: Microsoft Windows 2003 Server Auth Bypass

Auth Bypass

Proof Of Concept

PoC Available for CVE-2011-1985

CWE Category CWE-476
Published Date Oct 12, 2011
Modified Date Jun 16, 2026
Exploit Status Available
Score 7.1 CVSS v3.1
Exploit Probability (EPSS)
2.39%

Vulnerability Summary

CVE-2011-1985: 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, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly validate user-mode input, which allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via a crafted application, aka "Win32k Null Pointer De-reference Vulnerability."

Impacted Vendors

M
microsoft 6

Reference Links

http://www.securitytracker.com/id?1026165 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-077 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12935 http://www.securitytracker.com/id?1026165 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-077 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12935
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.1
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:N/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-2011-1985 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/18024
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 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:N/A:H

Affected Stack

No specific products linked.