CVE-2025-27738 Windows Resilient File System (ReFS) Information Disclosure Vulnerability
An authorized attacker can disclose sensitive information over the network due to improper access control in Windows ReFS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-27738?
CVE-2025-27738 is a medium-severity vulnerability in Microsoft Windows 10 1507, published on 8 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper access control in Windows Resilient File System (ReFS) allows an authorized attacker to disclose information over a network.
Weakness: CWE-284
Which versions are affected by CVE-2025-27738?
It affects 14 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 8 more.
How do I fix CVE-2025-27738?
No fix has been published for CVE-2025-27738 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-27738 being exploited?
There is no known exploitation of CVE-2025-27738 in the wild and no public exploit code.
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-x7g5-wpm2-r3jm.