Windows Hard Link in NVIDIA Windows GPU Display Driver and NVIDIA vGPU Software - CVE-2021-1091
Published: July 20, 2021
Vulnerability identifier: #VU55041
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-1091
CWE-ID: CWE-65
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: nVidia
Affected software:
NVIDIA Windows GPU Display Driver
NVIDIA vGPU Software
NVIDIA Windows GPU Display Driver
NVIDIA vGPU Software
Detailed vulnerability description
The vulnerability allows a local user to overwrite arbitrary files on the system.
The vulnerability exists due to incorrect processing of hard links. A local user can create a hard link to a critical file on the system and overwrite it with elevated privileges.
How to mitigate CVE-2021-1091
Install updates from vendor's website.