CVE-2011-0663

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 26.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-04-13 · updated 2026-06-16
Weakness: CWE-189

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."

Affected products

Microsoft Jscript: 5.6, 5.7, 5.8
Microsoft Vbscript: 5.6, 5.7, 5.8

References

http://osvdb.org/71774
http://secunia.com/advisories/44162
http://www.securityfocus.com/bid/47249
http://www.securitytracker.com/id?1025333
http://www.us-cert.gov/cas/techalerts/TA11-102A.html
http://www.vupen.com/english/advisories/2011/0949
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-031
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12673
http://osvdb.org/71774
http://secunia.com/advisories/44162
http://www.securityfocus.com/bid/47249
http://www.securitytracker.com/id?1025333

Get alerted when CVE-2011-0663 or the next vulnerability affects your stack