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CVE-2011-0663

8.8 · HIGH

Multiple integer overflows in the Microsoft (1) JScript 5.6 through 5.8 and (2) VBScript 5.6 through 5.8 scripting engines allow remote attackers to execute arbitrary code via a crafted web page, a…

Published Apr 13, 2011microsoftCWE-189EPSS 26.22%

Overview

CVE-2011-0663 is a high-severity vulnerability affecting microsoft jscript. It was published on April 13, 2011 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Multiple integer overflows in the Microsoft (1) JScript 5.6 through 5.8 and (2) VBScript 5.6 through 5.8 scripting engines allow remote attackers to execute arbitrary code via a crafted web page, aka "Scripting Memory Reallocation Vulnerability."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update jscript to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refosvdb.org/71774Refsecunia.com/advisories/44162Refwww.securityfocus.com/bid/47249Refwww.securitytracker.com/id?1025333Refwww.us-cert.gov/cas/techalerts/TA11-102A.htmlRefwww.vupen.com/english/advisories/2011/0949Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-031Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12673Refosvdb.org/71774Refsecunia.com/advisories/44162

How CyberStrike helps

Frequently asked questions

What is CVE-2011-0663?

CVE-2011-0663 is a high-severity vulnerability affecting microsoft jscript. It was published on April 13, 2011 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2011-0663?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-0663?

Check the references section for vendor advisories and patches from microsoft. Update jscript to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-0663?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-0663 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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