CVE-2025-21221
CVSS 3.1 Score 8.8 of 10 (high)
Details
Published Apr 8, 2025
Updated: Apr 9, 2025
CWE ID 122
Summary
CVE-2025-21221 is a critical vulnerability affecting the Windows Telephony Service. This issue involves a heap-based buffer overflow, allowing unauthorized attackers to execute malicious code over a network connection. Successful exploitation could result in remote code execution, potentially leading to significant security risks and potential system compromise. It is recommended that affected systems be patched as soon as possible to mitigate this vulnerability.
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Affected Products
- Microsoft Windows 10
- Microsoft Windows 11
- Microsoft Windows Server 2008 R2
- Microsoft Windows Server 2022
Affected Vendors
- Microsoft