Out-of-bounds read in Windows Server - CVE-2026-84007
Published: October 14, 2026
Vulnerability identifier: #VU155080
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84007
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose heap memory from a privileged process running on the server.
The vulnerability exists due to an out-of-bounds read in Remote Desktop Gateway Service when handling network interactions. A remote user can interact with the service over a network to disclose heap memory from a privileged process running on the server.
Affected software
Windows Server
How to mitigate CVE-2026-84007
Install security update from vendor's website.
Windows Server - addressed in versions 2012 R2 6.3.9600.23470, 2012 6.2.9200.26434, 2016 10.0.14393.9612, 2019 10.0.17763.9376, 2022 10.0.20348.5761, 2025 10.0.26100.33650