Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2025-21205
CVE-2025-21205:
vulnerability analysis and mitigation
Overview
A heap-based buffer overflow vulnerability was discovered in Windows Telephony Service, identified as CVE-2025-21205. The vulnerability was disclosed on April 8, 2025, and affects Windows systems running the Telephony Service. This security flaw enables unauthorized attackers to execute code remotely over a network (NVD, CVE Mitre).
Technical details
The vulnerability is classified as a heap-based buffer overflow (CWE-122) in the Windows Telephony Service. Microsoft has 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. This indicates that the vulnerability is network-exploitable, requires low attack complexity, needs no privileges, but does require user interaction (NVD).
Impact
The vulnerability poses significant security risks as it allows remote code execution capabilities. Given the CVSS scoring, successful exploitation could lead to high impacts on confidentiality, integrity, and availability of the affected systems (NVD).
Additional resources
Source: This report was generated using AI
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