CVE-2011-1998

CriticalCVSS 9.3/10Last modified Jun 16, 2026

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."

Metrics

CVSS 2.0 9.3/10AV:N/AC:M/Au:N/C:C/I:C/A:C

Weakness enumeration

CWE-908

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.securityfocus.com/bid/49963Broken Link, Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-081Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13199Tool Signature
http://www.securityfocus.com/bid/49963Broken Link, Third Party Advisory, VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-081Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13199Tool Signature

Timeline

Published: Oct 12, 2011
Last modified: Jun 16, 2026
NVD status: Modified

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