Windows MBT Transport Driver Elevation of Privilege Vulnerability
CVE-2025-55230

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:
21 August 2025

What is CVE-2025-55230?

Untrusted pointer dereference in Windows MBT Transport driver allows an authorized attacker to elevate privileges locally.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21122

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8416

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7783

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

.
CVE-2025-55230 : Elevation of Privilege Vulnerability in Windows MBT Transport Driver by Microsoft