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Windows CVE-2025-54109

MEDIUM
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2025-09-09 secure@microsoft.com
6.7
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:11 vuln.today
CVE Published
Sep 09, 2025 - 17:15 nvd
MEDIUM 6.7

DescriptionNVD

Access of resource using incompatible type ('type confusion') in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.

AnalysisAI

Access of resource using incompatible type ('type confusion') in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Access of Resource Using Incompatible Type (Type Confusion) (CWE-843), which allows attackers to execute arbitrary code by exploiting type confusion in the application. Access of resource using incompatible type ('type confusion') in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally. Affected products include: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Enforce strict type checking, use type-safe languages, validate object types before operations.

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CVE-2025-54109 vulnerability details – vuln.today

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