Use-after-free in Windows Server - CVE-2026-47654
Published: June 11, 2026
Vulnerability identifier: #VU134329
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-47654
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows Server
Windows Server
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Remote Desktop Client. A remote attacker can win a race condition and execute arbitrary code on the target system.
How to mitigate CVE-2026-47654
Install updates from vendor's website.