CVE-2025-26669: 
vulnerability analysis and mitigation

An out-of-bounds read vulnerability was discovered in Windows Routing and Remote Access Service (RRAS) that allows unauthorized attackers to disclose information over a network. The vulnerability was assigned CVE-2025-26669 and was publicly disclosed on April 8, 2025. This security flaw affects various versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and Windows Server editions (NVD, Rapid7).

The vulnerability is classified as CWE-125 (Out-of-bounds Read) and has received a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. This indicates that the vulnerability can be exploited over the network, requires low attack complexity, needs no privileges, but does require user interaction (NVD).

The vulnerability allows unauthorized attackers to disclose sensitive information over a network through an out-of-bounds read in the Windows Routing and Remote Access Service. This could potentially lead to the exposure of confidential data stored in the affected systems (NVD).

Microsoft has released security updates to address this vulnerability across multiple Windows versions, including Windows 10 (KB5055518, KB5055519, KB5055521, KB5055547), Windows 11 (KB5055523, KB5055528), and Windows Server editions (KB5055526, KB5055527, KB5055557, KB5055581). It is recommended to apply these patches as soon as possible (Rapid7).