CVE-2025-53153 in Windows
Summary
by MITRE • 08/12/2025
Use of uninitialized resource in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to disclose information over a network.
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Analysis
by VulDB Data Team • 11/22/2025
The vulnerability identified as CVE-2025-53153 represents a critical information disclosure flaw within the Windows Routing and Remote Access Service that affects systems running Microsoft Windows operating systems. This issue resides in the RRAS component which manages network routing and remote access functionality, making it a significant concern for enterprise environments that rely on these services for connectivity and access control. The vulnerability specifically manifests as the use of uninitialized resources within the service's memory management processes, creating potential attack vectors that could be exploited by authenticated malicious actors within the network perimeter.
The technical nature of this vulnerability stems from improper initialization of memory resources within the RRAS service implementation. When the service processes certain network requests or routing operations, it fails to properly initialize specific memory areas before utilizing them, leading to the potential exposure of sensitive data that may remain in memory from previous operations or system states. This uninitialized resource usage creates a pathway for information leakage that can reveal system configuration details, routing tables, authentication tokens, or other sensitive operational data. The flaw operates at the kernel level within the Windows networking stack, making it particularly dangerous as it can be leveraged to extract information that would normally remain protected within the system's memory space.
From an operational impact perspective, this vulnerability poses significant risks to organizations that depend on Windows RRAS for network connectivity and remote access management. An authenticated attacker with access to the network can exploit this weakness to gather intelligence about the network infrastructure, routing protocols in use, and potentially sensitive system configurations. The information disclosed through this vulnerability could enable more sophisticated attacks including network reconnaissance, privilege escalation attempts, or targeted attacks against other system components that rely on the exposed data. The attack vector requires only network access and authentication credentials, making it particularly concerning for environments where network segmentation is not properly implemented or where default credentials are in use.
Security professionals should consider this vulnerability in the context of broader attack frameworks such as the attack tactics described in the MITRE ATT&CK methodology where information gathering and reconnaissance activities are often the first steps in complex attack chains. The CWE (Common Weakness Enumeration) classification for this issue would likely fall under CWE-457 which describes "Use of Uninitialized Variable" as the underlying weakness. Organizations should prioritize immediate remediation through Microsoft's security updates and patches, while implementing network segmentation controls to limit potential attack surface. Additional mitigations include monitoring for unusual network traffic patterns, implementing strict access controls for RRAS services, and conducting regular vulnerability assessments to identify similar uninitialized resource issues in other system components. The vulnerability highlights the importance of proper memory management practices in system-level services and the critical need for comprehensive security testing of network infrastructure components that handle sensitive operational data.