Buffer overflow in Windows and Windows Server - CVE-2020-16939
Published: October 13, 2020 / Updated: October 28, 2020
Vulnerability identifier: #VU47553
CSH Severity: Low
CVSS v4.0: 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/E:P/U:Clear
CVE-ID: CVE-2020-16939
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when Group Policy improperly checks access. A local user can use a specially crafted application to trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2020-16939
Install update from vendor's website.