CVE-2025-33064: 
vulnerability analysis and mitigation

CVE-2025-33064 is a heap-based buffer overflow vulnerability affecting the Windows Routing and Remote Access Service (RRAS). The vulnerability was disclosed on June 10, 2025, and allows an authorized attacker to execute code over a network (NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the following vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. This indicates that the vulnerability can be exploited over the network, requires low attack complexity, needs low privileges, and no user interaction. The vulnerability is classified as CWE-122 (Heap-based Buffer Overflow) (NVD).

The successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system through the Windows Routing and Remote Access Service. Given the CVSS metrics, the vulnerability has high impacts on confidentiality, integrity, and availability of the affected system (ZDI).

Microsoft has released security updates to address this vulnerability as part of their June 2025 Patch Tuesday updates. System administrators are advised to apply the security updates as soon as possible (ZDI).