Vulnerability Description
Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1507 | < 10.0.10240.21100 |
| Microsoft | Windows 10 1607 | < 10.0.14393.8330 |
| Microsoft | Windows 10 1809 | < 10.0.17763.7678 |
| Microsoft | Windows 10 21H2 | < 10.0.19044.6216 |
| Microsoft | Windows 10 22H2 | < 10.0.19045.6216 |
| Microsoft | Windows 11 22H2 | < 10.0.22621.5768 |
| Microsoft | Windows 11 23H2 | < 10.0.22631.5768 |
| Microsoft | Windows 11 24H2 | < 10.0.26100.4851 |
| Microsoft | Windows Server 2008 | - |
| Microsoft | Windows Server 2012 | - |
| Microsoft | Windows Server 2016 | < 10.0.14393.8330 |
| Microsoft | Windows Server 2019 | < 10.0.17763.7678 |
| Microsoft | Windows Server 2022 | < 10.0.20348.3989 |
| Microsoft | Windows Server 2022 23H2 | < 10.0.25398.1791 |
| Microsoft | Windows Server 2025 | < 10.0.26100.4851 |
Related Weaknesses (CWE)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53778Vendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-53778-detection-script-improper-
- https://www.vicarius.io/vsociety/posts/cve-2025-53778-mitigation-script-improper
FAQ
What is CVE-2025-53778?
CVE-2025-53778 is a vulnerability with a CVSS score of 8.8 (HIGH). Improper authentication in Windows NTLM allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2025-53778?
CVE-2025-53778 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-53778?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2.