Windows NTLM Spoofing Vulnerability in Microsoft Products
CVE-2025-59284

3.3LOW

Key Information:

Vendor

Microsoft
Status
Windows 11 Version 22h2
Windows 11 Version 22h3
Windows 11 Version 23h2
Windows 11 Version 24h2
Vendor
CVE Published:
14 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-59284?

The Windows NTLM spoofing vulnerability enables unauthorized actors to gain access to sensitive information by performing local spoofing attacks. This security flaw provides a vector for attackers to manipulate authentication mechanisms, posing a significant risk to systems relying on NTLM, potentially leading to unauthorized actions within affected Microsoft products.

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Affected Version(s)

Windows 11 version 22H2 ARM64-based Systems 10.0.22621.0 < 10.0.22621.6060

Windows 11 version 22H3 ARM64-based Systems 10.0.22631.0 < 10.0.22631.6060

Windows 11 Version 23H2 x64-based Systems 10.0.22631.0 < 10.0.22631.6060

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-59284-PoC
Created by lytnc

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
3.3
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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