CVE-2025-24983 Microsoft Windows Win32k Use-After-Free
An authorized local attacker can exploit a use-after-free flaw in the Windows Win32 Kernel Subsystem to elevate privileges.
- Exploited in the wild
- Since 11 Mar 2025
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-24983?
CVE-2025-24983 is a high-severity use after free vulnerability in Microsoft Windows 10 1507, published on 11 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
Weakness: CWE-416
Which versions are affected by CVE-2025-24983?
It affects 5 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016.
How do I fix CVE-2025-24983?
No fix has been published for CVE-2025-24983 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 1 Apr 2025.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-24983 being exploited?
Yes. Attackers have exploited CVE-2025-24983 in the wild since at least 11 Mar 2025.
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-f4fr-5w7w-pg2w.