Is Use After Free affected by CVE-2026-26182?

CVE-2026-26182 is a local privilege escalation vulnerability in Windows AFD.sys affecting all supported Windows 10, Windows 11, and Windows Server versions (2012-2025). Authenticated low-privilege users can escalate to SYSTEM level, enabling complete system compromise.

CVE-2026-26182

EUVD-2026-22426 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 - 19:28 vuln.today

DescriptionNVD

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in Windows Ancillary Function Driver for WinSock (AFD.sys) allows authenticated low-privilege users to gain SYSTEM-level access through use-after-free memory corruption. Affects all supported Windows 10, Windows 11, and Windows Server versions from 2012 through 2025, including Server Core installations. …

RemediationAI

Within 24 hours: Inventory all Windows 10, 11, and Server 2012-2025 systems across your environment and verify patch availability from Windows Update or WSUS. Within 7 days: Deploy vendor-released patches to non-production systems and validate stability; prioritize Server Core and Server editions as highest-risk. …

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

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

CVE-2026-26182 vulnerability details – vuln.today

Back

CVE-2026-26182

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

Full analysis requires sign-in

Share

External POC / Exploit Code