Zero-day vulnerability in Windows

Memory corruption

The vulnerability was reported by FireEye researcher Wang Yu.

Vulnerability details

Advisory: SB2015090802 - Multiple vulnerabilities in Microsoft Windows

Vulnerable component: Windows

CVE-ID: CVE-2015-2546

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

CWE-ID: CWE-119 - Memory corruption


The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to boundary error in ATMFD.dll in Win32k.sys. A local attacker can execute a specially crafted program, trigger memory corruption and gain SYSTEM privileges.

Successful exploitation of the vulnerability may result in full control of the vulnerable system.

Note: the vulnerability was being actively exploited.