CVE-2026-24291
HIGHCVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Tags
Description
Incorrect permission assignment for critical resource in Windows Accessibility Infrastructure (ATBroker.exe) allows an authorized attacker to elevate privileges locally.
Analysis
Privilege escalation in Windows Accessibility Infrastructure (ATBroker.exe) across Windows 10, Windows 11, and Windows Server 2022 stems from improper permission assignments on a critical resource. A local authenticated attacker can exploit this misconfiguration to gain elevated privileges without user interaction. …
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Remediation
Within 24 hours: Inventory all Windows systems with accessibility features enabled and assess user access patterns to identify high-risk environments. Within 7 days: Implement network segmentation to restrict local administrative access and deploy endpoint detection rules to monitor ATBroker.exe process activity for suspicious behavior. …
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