Privilege escalation in Microsoft Internet Explorer - CVE-2014-4123

Vulnerability identifier: #VU5372

CSH Severity: Critical

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2014-4123

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a remote attacker to obtain elevated privileges on the target system.

The weakness exists due to the failure to properly validate permissions. A remote attacker can gain elevated privileges and execute arbitrary code on the affected system.

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

Note: the vulnerability was being actively exploited.

Microsoft Internet Explorer

Install update from vendor's website.

• https://technet.microsoft.com/en-us/library/security/ms14-056.aspx

• Multiple vulnerabilities in Microsoft Internet Explorer
• Cumulative Security Update for Internet Explorer