CVE-2026-65782 in Windows
Summary
by MITRE • 08/12/2026
Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally.
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Analysis
by VulDB Data Team • 08/12/2026
This vulnerability represents a critical use-after-free condition within the Windows Autopilot component that enables authenticated attackers to achieve local privilege escalation. The flaw occurs when the system fails to properly validate memory references after objects have been freed, creating opportunities for malicious code execution in privileged contexts. Such vulnerabilities typically arise from improper memory management practices where developers do not adequately track object lifecycles or fail to implement proper null pointer checks following deallocation operations. The Windows Autopilot service operates with elevated privileges during device enrollment and configuration processes, making it an attractive target for attackers seeking to leverage existing authentication to gain administrative access.
The technical implementation of this use-after-free vulnerability stems from inadequate memory management within the autopilot subsystem that handles device provisioning and configuration tasks. When processing certain enrollment requests or configuration data structures, the system may free memory associated with specific objects while still maintaining references to those locations. An authenticated user can manipulate input parameters or trigger specific sequences that cause the system to access previously freed memory blocks, potentially allowing arbitrary code execution within the context of the autopilot service. This type of vulnerability aligns with CWE-416 which specifically addresses use-after-free conditions in software implementations.
The operational impact of this privilege escalation vector is significant as it allows an attacker who has already established a foothold on a system through legitimate authentication to elevate their privileges from standard user level to administrative access without requiring additional compromise mechanisms. The attack typically requires the target system to be running Windows Autopilot functionality and the attacker must possess valid user credentials, making this vulnerability particularly dangerous in environments where credential compromise is possible through social engineering or other means. Once successfully exploited, the attacker gains complete control over the affected system including access to sensitive data, ability to install malicious software, and potential lateral movement capabilities.
Mitigation strategies for this vulnerability should focus on implementing proper memory management practices including thorough input validation, ensuring proper object lifecycle management, and applying timely security updates from Microsoft. Organizations should prioritize patching systems running Windows Autopilot functionality and consider implementing additional monitoring for suspicious process activities related to autopilot services. The exploitability of this vulnerability can be reduced by enforcing least privilege principles and limiting unnecessary administrative rights. Security teams should also implement behavioral monitoring to detect anomalous patterns in autopilot service usage that might indicate exploitation attempts, particularly focusing on memory access violations or unexpected privilege escalation events. This type of vulnerability commonly maps to attack techniques described in the MITRE ATT&CK framework under privilege escalation tactics where attackers leverage software vulnerabilities to gain elevated system rights.