9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.919 High
EPSS
Percentile
98.9%
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of various Microsoft software User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the substringData() method available on the TextNode JavaScript object. When specific parameters are passed to the method, an integer overflow occurs causing incorrect memory allocation. If this event occurs after a different ActiveX object has been instantiated, an exploitable condition is created when the ActiveX object is deallocated which can result in the execution of arbitrary code.