Privilege Elevation Vulnerability in Windows TCP/IP
CVE-2025-54093

7HIGH

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-2025-54093?

A vulnerability exists within the Windows TCP/IP stack that allows an authorized attacker to exploit a time-of-check, time-of-use (TOCTOU) race condition. By carefully manipulating the timing of certain operations, an attacker can elevate their privileges, potentially leading to unauthorized access and control over affected systems. This issue highlights the importance of secure programming practices to mitigate timing vulnerabilities that can allow for privilege escalation.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21128

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8422

Windows 10 Version 1809 32-bit 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
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.