CVE-2025-29956: 
vulnerability analysis and mitigation

A buffer over-read vulnerability in Windows SMB (CVE-2025-29956) was disclosed on May 13, 2025. This security flaw affects various Windows Server versions including Windows Server 2008, 2012, and Windows 10 version 1809, allowing an authorized attacker to disclose information over a network (NVD, Wiz).

The vulnerability has been classified as CWE-126 (Buffer Over-read) and CWE-125 (Out-of-bounds Read). It received a CVSS v3.1 base score of 5.4 (MEDIUM) with the vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L, indicating network attack vector, high attack complexity, low privileges required, and user interaction required (NVD).

When successfully exploited, this vulnerability primarily affects system confidentiality with high impact on information disclosure but no impact on integrity. The exploitation allows authorized attackers to disclose information over a network (NVD, Wiz).

Microsoft has addressed this vulnerability by releasing security patches as part of their May 2025 Patch Tuesday updates. System administrators and users are strongly recommended to apply these updates through Windows Update or enterprise management tools to protect their systems (Wiz).