Privilege escalation in Microsoft Windows Netlogon



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-33070
CWE-ID CWE-908
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use of uninitialized resource

EUVDB-ID: #VU110752

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-33070

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in Windows Netlogon. A remote attacker can pass specially crafted data to the application, trigger uninitialized usage of resources and gain domain administrator privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.4264

Windows Server: 2008 R2 SP1 - 2025 10.0.26100.4264

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-33070


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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