#VU50138 NULL pointer dereference in Windows and Windows Server
Published: January 29, 2021
Vulnerability identifier: #VU50138
Vulnerability risk: Low
CVSSv4.0: 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:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a NULL pointer dereference error within the win32kfull.sys driver.. A local user can run a specially crafted program on the system, trigger a NULL pointer dereference error and execute arbitrary code with SYSTEM privileges.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.