CVE-2011-1998

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."

• CWE-908

• 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

Published

Oct 12, 2011

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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