CVE-2025-53142 Microsoft Brokering File System Elevation of Privilege Vulnerability
An authorized local attacker can exploit a use-after-free flaw in the Windows Brokering File System to elevate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-53142?
CVE-2025-53142 is a high-severity use after free vulnerability in Microsoft Windows 11 22h2, published on 12 Aug 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 Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
Weakness: CWE-416
Which versions are affected by CVE-2025-53142?
It affects 5 products.
Products include Microsoft Windows 11 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows Server 2022 23h2, Microsoft Windows Server 2025.
How do I fix CVE-2025-53142?
No fix has been published for CVE-2025-53142 yet. Limit exposure of the affected software until one is available.
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-2025-53142 being exploited?
There is no known exploitation of CVE-2025-53142 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 11 22h2
- CVE-2024-49117 Windows Hyper-V Remote Code Execution Vulnerability
- CVE-2024-21435 Windows OLE Remote Code Execution Vulnerability
- CVE-2025-24084 Windows Subsystem for Linux (WSL2) Kernel Remote Code Execution Vulnerability
- CVE-2025-33054 Remote Desktop Spoofing Vulnerability
- CVE-2025-29828 Windows Schannel Remote Code Execution Vulnerability
Sources
Also known as GHSA-crvv-j87g-j7hr.