CVE-2025-29966
vulnerability analysis and mitigation

Overview

A critical heap-based buffer overflow vulnerability (CVE-2025-29966) was identified in Windows Remote Desktop, discovered and disclosed as part of Microsoft's May 2025 Patch Tuesday security updates. The vulnerability affects various Windows operating systems and Remote Desktop Client versions, allowing unauthorized attackers to execute code over a network (NVD, Wiz).

Technical details

The vulnerability has been assigned 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 scoring indicates that the vulnerability can be exploited remotely with low attack complexity, requires no privileges, but does need user interaction. The vulnerability is classified as CWE-787 (Out-of-bounds Write) and CWE-122 (Heap-based Buffer Overflow) (NVD).

Impact

If successfully exploited, this vulnerability enables unauthorized attackers to execute arbitrary code over a network, potentially leading to full system compromise. The high CVSS score indicates severe potential consequences, affecting the confidentiality, integrity, and availability of the targeted system (Wiz).

Mitigation and workarounds

Microsoft has released security updates as part of the May 2025 Patch Tuesday to address this vulnerability. Users and administrators are strongly advised to apply the latest security updates to affected systems (Wiz).

Additional resources


SourceThis report was generated using AI

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