CVE-2025-32709 Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free
An authorized local attacker can exploit a null pointer dereference in the Windows Ancillary Function Driver to elevate privileges.
- Exploited in the wild
- Since 13 May 2025
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-32709?
CVE-2025-32709 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 13 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Weakness: CWE-416
Which versions are affected by CVE-2025-32709?
It affects 15 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 9 more.
How do I fix CVE-2025-32709?
No fix has been published for CVE-2025-32709 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Jun 2025.
Is CVE-2025-32709 being exploited?
Yes. Attackers have exploited CVE-2025-32709 in the wild since at least 13 May 2025.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-jwq6-vvcv-h2px.