Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2025-27477
CVE-2025-27477:
vulnerability analysis and mitigation
Overview
A heap-based buffer overflow vulnerability was discovered in Windows Telephony Service, identified as CVE-2025-27477. The vulnerability was reported on April 8, 2025, and was assigned by Microsoft Corporation. This security flaw affects Windows systems running the Telephony Service component (NVD, CVE Mitre).
Technical details
The vulnerability is classified as a heap-based buffer overflow (CWE-122) that could potentially lead to code execution. 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 allows an unauthorized attacker to execute arbitrary code over a network, potentially leading to complete system compromise. Given the high CVSS scores for confidentiality, integrity, and availability (all rated as High), successful exploitation could result in significant system impact (NVD).
Additional resources
Source: This report was generated using AI
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