CVE-2025-21273
vulnerability analysis and mitigation

Overview

Windows Telephony Service Remote Code Execution Vulnerability (CVE-2025-21273) was disclosed on January 14, 2025. This vulnerability affects multiple versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and various Windows Server editions (NVD).

Technical details

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:N/UI:R/S:U/C:H/I:H/A:H. Microsoft has classified this as a heap-based buffer overflow vulnerability (CWE-122) (NVD).

Impact

Based on the CVSS scoring, this vulnerability can lead to high impacts on confidentiality, integrity, and availability of affected systems. The remote code execution capability could allow attackers to execute arbitrary code with elevated privileges on affected systems (NVD).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability across all affected versions of Windows, including Windows 10, Windows 11, and Windows Server editions. Users are advised to apply the latest security updates to mitigate this vulnerability (MSRC).

Additional resources


SourceThis report was generated using AI

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