CVE-2025-58717 in Windows
Summary
by MITRE • 10/14/2025
Out-of-bounds read in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to disclose information over a network.
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Analysis
by VulDB Data Team • 10/31/2025
The vulnerability identified as CVE-2025-58717 represents a critical out-of-bounds read flaw within the Windows Routing and Remote Access Service RRAS component. This issue affects systems running Windows operating systems where RRAS functionality is enabled, creating a significant security risk for network infrastructure. The vulnerability stems from improper input validation within the routing protocols processing mechanisms that handle remote access connections. When malformed or unexpected data packets are processed by the RRAS service, the application fails to properly bounds-check memory access operations, leading to potential information disclosure through memory reads beyond allocated buffer boundaries. This flaw specifically impacts the network communication stack that manages routing decisions and remote access connections, making it particularly dangerous for enterprise environments relying on RRAS for network connectivity management. The vulnerability is classified under CWE-125 as an out-of-bounds read condition, which falls within the broader category of memory safety issues that have historically led to information disclosure and potential privilege escalation scenarios. Security researchers have identified that this vulnerability can be exploited through network-based attacks without requiring authentication, making it particularly concerning for systems exposed to untrusted network traffic. The attack vector typically involves sending specially crafted packets to the RRAS service listening on standard network ports, which then processes these malformed inputs and triggers the out-of-bounds memory read operation. This information disclosure can potentially reveal sensitive system memory contents including configuration details, credentials, or other confidential data that may aid attackers in further compromising the affected systems. The operational impact extends beyond simple information disclosure as this vulnerability can serve as a stepping stone for more sophisticated attacks within the network infrastructure. Organizations using RRAS for VPN connectivity, remote access services, or network routing functions face elevated risk from this vulnerability, particularly in environments where network segmentation is not properly implemented. The vulnerability aligns with ATT&CK technique T1046 which involves discovering services on remote systems through network scanning and communication protocols, making it a valuable reconnaissance tool for attackers seeking to identify vulnerable systems within their target network. Microsoft has classified this vulnerability as high-risk and has issued patches for affected Windows versions including Windows 10, Windows 11, and various server editions. The patch addresses the memory bounds checking issue within the RRAS service by implementing proper input validation and boundary verification mechanisms. Organizations should prioritize applying these security updates immediately while implementing network monitoring to detect potential exploitation attempts. Additionally, network segmentation strategies should be reinforced to limit the potential impact of successful exploitation, particularly for systems running RRAS services that are not essential for core network operations. The vulnerability demonstrates the ongoing challenges in securing complex network infrastructure components and highlights the importance of robust memory safety practices in system development. Network administrators should also consider implementing additional monitoring controls to detect unusual traffic patterns that may indicate exploitation attempts against RRAS services, as the information disclosure can occur without authentication requirements.