CVE-2011-1998

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

12/10/2011

Last modified:

11/04/2025

Description

Microsoft Internet Explorer 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that was not properly initialized, aka "Jscript9.dll Remote Code Execution Vulnerability."

Impact

Vector 2.0

AV:N/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.30 HIGH
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

9.30

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:microsoft:internet_explorer:9:::::::*
cpe:2.3:o:microsoft:windows_7:-:::::::*
cpe:2.3:o:microsoft:windows_7:-:sp1::::::
cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
cpe:2.3:o:microsoft:windows_server_2008:r2:-::::::
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1::::::
cpe:2.3:o:microsoft:windows_vista:-:sp2::::::

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:microsoft:internet_explorer:9:::::::*
cpe:2.3:o:microsoft:windows_7:-:::::::*
cpe:2.3:o:microsoft:windows_7:-:sp1::::::
cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
cpe:2.3:o:microsoft:windows_server_2008:r2:-::::::
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1::::::
cpe:2.3:o:microsoft:windows_vista:-:sp2::::::

CVE-2011-1998

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools