Release of invalid pointer or reference in Microsoft Windows and Windows Server - CVE-2026-83735
Published: October 14, 2026
Vulnerability identifier: #VU154904
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2026-83735
CWE-ID: CWE-763
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges to SYSTEM.
The vulnerability exists due to release of an invalid pointer or reference in Windows Kernel when releasing pointers or references. A local user can exploit this pointer or reference release locally to escalate privileges to SYSTEM.
No user interaction is required.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-83735
Install security update from vendor's website.
Microsoft Windows - addressed in versions 11 23H2 10.0.22631.7652, 11 24H2 10.0.26100.9711, 11 25H2 10.0.26200.9711, 11 26H1 10.0.28000.3231
Windows Server - update to 2025 10.0.26100.33650
Windows Server - update to 2025 10.0.26100.33650