Input validation error in Windows and Windows Server - CVE-2018-8550
Published: November 13, 2018 / Updated: June 17, 2021
Vulnerability identifier: #VU15876
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-8550
CWE-ID: CWE-20
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 insufficient validation in Windows COM Aggregate Marshaler when processing interface requests. A local unprivileged user can use this vulnerability in conjunction with another issue to execute arbitrary code on the system with elevated privileges.
How to mitigate CVE-2018-8550
Install updates from vendor's website.