CVE-2014-1815 was reported to Microsoft by Clement Lecigne, a security engineer who works for Google in its Swiss office.
The vulnerability was used in the phishing campaign started on or about July 21, 2014 and primarily targeting the energy industry.
Advisory: SB2014051302 - Two remote code execution vulnerabilities in Microsoft Internet Explorer
Vulnerable component: Microsoft Internet Explorer
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 error. 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.