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MSRC compact vulnerability detail

CVE-2025-59201 · Network Connection Status Indicator (NCSI) Elevation of Privilege Vulnerability

Improper access control in Network Connection Status Indicator (NCSI) allows an authorized attacker to elevate privileges locally.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2025-10-14
Signals
Network Connection Status Indicator (NCSI) Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-284: Improper Access Control
Patch Diff
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Resolved binary override
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Description
Improper access control in Network Connection Status Indicator (NCSI) allows an authorized attacker to elevate privileges locally.
FAQ / Articles
FAQ
What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could execute code in the security context of the “NT AUTHORITY\Network Service” account.
Network Connection Status Indicator (NCSI) Elevation of Privilege Vulnerability
Improper access control in Network Connection Status Indicator (NCSI) allows an authorized attacker to elevate privileges locally.