Privilege escalation in Microsoft Windows and Windows Server - CVE-2017-11783
Published: October 10, 2017 / Updated: June 17, 2021
Vulnerability identifier: #VU8781
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-11783
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to an error when Windows improperly handles calls to Advanced Local Procedure Call (ALPC). A local attacker can run a specially crafted application and execute arbitrary code with SYSTEM privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2017-11783
Install updates from vendor's website.