Zero-day vulnerability in Microsoft Internet Explorer

тАЬUse-after-freeтАЭ error

The flaw was most likely introduced in August 2013. The vulnerability was reported to vendor - 2014-02-04.
Private fully functional exploit code existed long before the vendor released security patch. We consider this vulnerability a zero-day.

Known malware:


Vulnerability details

Advisory: SB20140311 - Remote code execution in Microsoft Internet Explorer

Vulnerable component: Microsoft Internet Explorer

CVE-ID: CVE-2014-0307

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE-ID: CWE-119 - Memory corruption


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to use-after-free when accessing an object in memory. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Public Exploits: