Incorrect permission assignment for critical resource in Windows and Windows Server - CVE-2026-24291
Published: March 10, 2026 / Updated: April 1, 2026
Vulnerability identifier: #VU123703
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:P/U:Clear
CVE-ID: CVE-2026-24291
CWE-ID: CWE-732
Exploitation vector: Local access
Exploit availability:
Public exploit is 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 incorrect permission assignment for critical resource in Windows Accessibility Infrastructure (ATBroker.exe). A local user can gain elevated privileges on the target system.
How to mitigate CVE-2026-24291
Install updates from vendor's website.