Access Control Flaw in Network Connection Status Indicator by Microsoft
CVE-2025-59201

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 11 Version 25h2
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Vendor
CVE Published:
14 October 2025

What is CVE-2025-59201?

A vulnerability exists in the Network Connection Status Indicator (NCSI) that permits an authorized attacker to gain elevated privileges locally. This flaw stems from inadequate access controls, potentially allowing unauthorized users to exploit the system. The vulnerability underscores the importance of robust security measures to prevent unauthorized access and protect sensitive systems.

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Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21161

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8519

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7919

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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