CVE-2019-1065 in Windows
Summary
by MITRE
An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1041.
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Analysis
by VulDB Data Team • 05/21/2025
The vulnerability described in CVE-2019-1065 represents a critical elevation of privilege flaw within the Windows kernel operating system. This weakness stems from improper handling of memory objects by the kernel component, creating a pathway for malicious actors to escalate their privileges from standard user level to administrative rights. The vulnerability affects multiple Windows operating systems including Windows 10, Windows Server 2016, and Windows Server 2019, making it particularly concerning for enterprise environments where privileged access can lead to complete system compromise.
The technical root cause of this vulnerability lies in how the Windows kernel manages memory objects during certain operations, specifically when processing kernel-mode objects that are improperly validated or sanitized. This flaw allows an attacker to manipulate memory structures in a way that bypasses normal security boundaries and privilege checks. According to CWE classification, this vulnerability maps to CWE-121: Stack-based Buffer Overflow and CWE-122: Heap-based Buffer Overflow, as the improper memory handling creates conditions where buffer overflows can occur in kernel memory spaces. The vulnerability exists in the kernel-mode drivers and system components that process user-supplied data, creating a potential for arbitrary code execution with elevated privileges.
From an operational perspective, this vulnerability poses significant risk to organizations as it enables attackers to gain unauthorized administrative access to systems without requiring prior authentication or exploitation of other vulnerabilities. The attack typically requires local system access or a user to be tricked into executing malicious code, but once successful, the attacker can perform actions such as installing malware, modifying system files, creating new user accounts, or accessing sensitive data. The vulnerability's impact aligns with ATT&CK technique T1068: Exploitation for Privilege Escalation, where adversaries leverage system vulnerabilities to elevate their privileges within the compromised system.
The exploitation of CVE-2019-1065 typically involves crafting specific memory operations that trigger the kernel's improper object handling behavior. Attackers may use techniques such as memory corruption, heap spraying, or race conditions to manipulate kernel memory structures and achieve privilege escalation. The vulnerability can be particularly dangerous in environments where users have access to systems that may be exploited through social engineering or other attack vectors. Organizations should consider implementing additional security controls such as application whitelisting, kernel-mode driver protection, and monitoring for unusual privilege escalation activities. Microsoft addressed this vulnerability through security updates that improved kernel memory object validation and enhanced privilege checking mechanisms, requiring system administrators to apply these patches promptly to maintain system security and prevent exploitation attempts.