Improper Access Control in Windows Hyper-V Exposes Users to Privilege Escalation Risks
CVE-2025-54098

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
9 September 2025

What is CVE-2025-54098?

The vulnerability in Windows Hyper-V is characterized by improper access control, enabling an authorized attacker to escalate privileges locally. This means that an attacker with limited access could exploit this flaw to gain higher-level permissions within the system, potentially leading to unauthorized actions and compromised security. Administrators should review their Hyper-V configurations and apply necessary patches to mitigate this risk.

Affected Version(s)

Windows 10 Version 1507 x64-based Systems 10.0.10240.0 < 10.0.10240.21128

Windows 10 Version 1607 x64-based Systems 10.0.14393.0 < 10.0.14393.8422

Windows 10 Version 1809 x64-based Systems 10.0.17763.0 < 10.0.17763.7792

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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CVE-2025-54098 : Improper Access Control in Windows Hyper-V Exposes Users to Privilege Escalation Risks