SB2025101547 - Privilege escalation in Microsoft Network Connection Status Indicator (NCSI)
Published: October 15, 2025
Security Bulletin ID
SB2025101547
Severity
Low
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) Improper access control (CVE-ID: CVE-2025-59201)
The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in Network Connection Status Indicator (NCSI). A local user can bypass implemented security restrictions and gain elevated privileges on the target system.
Remediation
Install update from vendor's website.