CVE-2025-32709

HIGH
2025-05-13 [email protected]
7.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:41 vuln.today
Added to CISA KEV
Feb 13, 2026 - 21:37 cisa
CISA KEV
CVE Published
May 13, 2025 - 17:16 nvd
HIGH 7.8

Tags

Use After Free Memory Corruption Microsoft Denial Of Service Windows 10 1507 Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 22h2 Windows 11 23h2 Windows 11 24h2 Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025 Windows

Description

Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Analysis

Windows Ancillary Function Driver for WinSock contains a use-after-free enabling local privilege escalation through a null pointer dereference, exploited in May 2025.

Technical Context

The CWE-416 vulnerability in afd.sys causes a null pointer dereference condition that can be exploited for privilege escalation through controlled kernel memory access patterns.

Affected Products

['Microsoft Windows (AFD.sys)']

Remediation

Apply May 2025 security updates.

Priority Score

90
Low Medium High Critical
KEV: +50
EPSS: +1.0
CVSS: +39
POC: 0

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CVE-2025-32709 vulnerability details – vuln.today
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