CVE-2025-29967: 
vulnerability analysis and mitigation

A heap-based buffer overflow vulnerability (CVE-2025-29967) was discovered in the Remote Desktop Gateway Service, disclosed on May 13, 2025. This critical security flaw affects Microsoft's Remote Desktop Gateway Service and allows unauthorized attackers to execute arbitrary code over a network (Wiz, NVD).

The vulnerability is classified as a heap-based buffer overflow (CWE-122) with a CVSS v3.1 base score of 8.8 HIGH (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). The attack vector is network-accessible and requires no privileges, though user interaction is needed. An attacker controlling a Remote Desktop Server could trigger the buffer overflow when a vulnerable Remote Desktop Client connects to the server (Talos, NVD).

The vulnerability poses significant risks with high impacts on confidentiality, integrity, and availability of the affected system. If successfully exploited, it allows unauthorized attackers to execute arbitrary code over a network, potentially leading to complete system compromise (NVD, Wiz).

Microsoft has addressed this vulnerability as part of their May 2025 Patch Tuesday security updates. Users are strongly advised to apply the latest security patches to protect against this vulnerability (Wiz).

The vulnerability was included in Microsoft's May 2025 Patch Tuesday update, which addressed a total of 72 security flaws, including five actively exploited zero-days. This particular vulnerability was classified as 'Critical' due to its potential impact (Wiz).