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Vulnerability DatabaseCVE-2025-21236

CVE-2025-21236: 
vulnerability analysis and mitigation

Overview

Windows Telephony Service Remote Code Execution Vulnerability (CVE-2025-21236) was discovered and disclosed in December 2024. The vulnerability affects multiple versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and various Windows Server editions (MITRE CVE).

Technical details

The vulnerability has been assigned a CVSS score of 9.0, indicating high severity with the following vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This suggests the vulnerability is network-accessible, requires moderate complexity to exploit, needs no authentication, and can impact confidentiality, integrity, and availability completely (Rapid7).

Impact

The vulnerability affects multiple Windows versions including Windows 10 (1507 through 22H2), Windows 11 (22H2 through 24H2), and Windows Server versions (2008 through 2025). If exploited, it could allow remote code execution on affected systems (NVD Change Records).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability. The fixes are available through various KB articles including KB5050013, KB5049993, KB5050008, KB5049981, KB5050021, and others for different affected versions (Rapid7).

Additional resources

Source: This report was generated using AI

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