Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2025-21237
CVE-2025-21237:
vulnerability analysis and mitigation
Overview
A Windows Telephony Service Remote Code Execution Vulnerability identified as CVE-2025-21237 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 (CVE MITRE).
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 that the vulnerability is network-accessible, requires moderate complexity to exploit, needs no authentication, and can result in complete compromise of confidentiality, integrity, and availability (Rapid7).
Impact
This vulnerability could allow attackers to execute remote code on affected systems through the Windows Telephony Service, potentially leading to complete system compromise (CVE MITRE).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability across multiple Windows versions. The patches are available through various KB updates including KB5050013 for Windows 10 (1507), KB5049993 for Windows 10 (1607), KB5050008 for Windows 10 (1809), KB5049981 for Windows 10 (21H2/22H2), KB5050021 for Windows 11 (22H2/23H2), and multiple other versions of Windows Server (Rapid7).
Additional resources
Source: This report was generated using AI
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