BROWSER-IE Microsoft Internet Explorer 11 JScript use-after-free attempt
Attempted User Privilege Gain
CVSS base score 7.5
CVSS impact score 5.9
CVSS exploitability score 1.6
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH
CVE-2018-8267 is a use after free vulnerability in the Jscript scripting engine
(jscript.dll) of Windows. The root cause is where a VAR points to an object, and
the object is freed because its not rooted in the GC.
CVE-2018-8267: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-8243.
- microsoft internet_explorer 9
- microsoft internet_explorer 10
- microsoft internet_explorer 11
Ease of attack
Simple, it is not known if any exploits exist for this.
Follow corporate patching procedures to ensure Microsoft Internet Explorer is up to date.
- Cisco's Talos Intelligence Group