SB2021060816 - Privilege escalation in Microsoft Windows NTFS
Published: June 8, 2021 Updated: July 15, 2023
Security Bulletin ID
SB2021060816
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-31956)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 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:A/U:Green
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists within the NTFS subsystem in Microsoft Windows. A local user can run a specially crafted program to execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.