SB2021081014 - Privilege escalation in Microsoft Windows Update Medic Service
Published: August 10, 2021
Security Bulletin ID
SB2021081014
Severity
High
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 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2021-36948)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the Windows Update Medic Service. A local user can run a specially crafted program to execute arbitrary code with elevated privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.