CVE-2025-50163: 
vulnerability analysis and mitigation

CVE-2025-50163 is a heap-based buffer overflow vulnerability discovered in Windows Routing and Remote Access Service (RRAS). The vulnerability was disclosed on August 12, 2025, and was last modified on August 14, 2025. This security flaw affects multiple versions of Microsoft Windows Server, including Server 2008, 2012, 2016, 2019, 2022, and 2025 (NVD).

The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow) and CWE-125 (Out-of-bounds Read). It has received a CVSS v3.1 base score of 8.8 (HIGH) with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating network vector, low attack complexity, no privileges required, and high impact on confidentiality, integrity, and availability (NVD).

The vulnerability allows an unauthorized attacker to execute code over a network, potentially leading to complete system compromise. The high CVSS score indicates severe potential consequences for affected systems, with possible impacts on system confidentiality, integrity, and availability (NVD).

Microsoft has identified affected versions of Windows Server and provided version-specific updates. The affected versions include Windows Server 2008 through 2025, with specific version numbers requiring updates: Server 2025 (up to 10.0.26100.4851), Server 2016 (up to 10.0.14393.8330), Server 2019 (up to 10.0.17763.7678), Server 2022 (up to 10.0.20348.3989), and Server 2022 23H2 (up to 10.0.25398.1791) (NVD).