Untrusted Pointer Dereference in Windows and Windows Server - CVE-2026-50441
Published: July 15, 2026
Vulnerability identifier: #VU137729
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-50441
CWE-ID: CWE-822
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Resilient File System (ReFS), which leads to security restrictions bypass and privilege escalation.
How to mitigate CVE-2026-50441
Install updates from vendor's website.