Out-of-bounds read in Windows and Windows Server - CVE-2026-50485
Published: July 17, 2026
Vulnerability identifier: #VU138064
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-50485
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in Windows Hyper-V when handling adjacent network input. A remote user can send crafted network traffic to cause a denial of service.
How to mitigate CVE-2026-50485
Install security update from vendor's website.