How to fix CVE-2026-32070?

Within 24 hours: Identify all Windows 10, 11, and Server 2012-2025 systems in your environment using asset inventory tools. Within 7 days: Apply vendor-released patches to all affected systems, prioritizing production servers and systems with high user access. Within 30 days: Complete patching across all remaining Windows systems; validate patch deployment through WSUS or endpoint management tools and verify no exploitation indicators exist in security logs (Event ID 4688 for suspicious local process creation from low-privilege accounts).

Is Use After Free affected by CVE-2026-32070?

CVE-2026-32070 is a local privilege escalation vulnerability in the Windows Common Log File System driver affecting Windows 10, 11, and Server 2012-2025.

CVE-2026-32070

EUVD-2026-22493 HIGH

2026-04-14 microsoft

Denial Of Service Use After Free Memory Corruption Microsoft Windows 10 Version 1607 Windows 10 Version 1809 Windows 10 Version 21H2 Windows 10 Version 22H2 Windows 11 Version 22H3 Windows 11 Version 23H2 Windows 11 Version 24H2 Windows 11 Version 25H2 Windows 11 Version 26H1 Windows Server 2012 Windows Server 2012 Server Core Installation Windows Server 2012 R2 Windows Server 2012 R2 Server Core Installation Windows Server 2016 Windows Server 2016 Server Core Installation Windows Server 2019 Windows Server 2019 Server Core Installation Windows Server 2022 Windows Server 2022 23H2 Edition Server Core Installation Windows Server 2025 Windows Server 2025 Server Core Installation

7.0

CVSS 3.1

Temporal: 6.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Apr 14, 2026 - 19:31 vuln.today

DescriptionNVD

Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in Windows Common Log File System (CLFS) Driver affects Windows 10, 11, and Server 2012-2025 through a use-after-free memory corruption flaw. Authenticated local attackers with low privileges can exploit this vulnerability to gain SYSTEM-level access, achieving full control over confidentiality, integrity, and availability. …

RemediationAI

Within 24 hours: Identify all Windows 10, 11, and Server 2012-2025 systems in your environment using asset inventory tools. Within 7 days: Apply vendor-released patches to all affected systems, prioritizing production servers and systems with high user access. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-32070 vulnerability details – vuln.today

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CVE-2026-32070

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

Full analysis requires sign-in

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External POC / Exploit Code