CVE-2025-21222
CVSS 3.1 Score 8.8 of 10 (high)
Details
Published Apr 8, 2025
Updated: Apr 9, 2025
CWE ID 122
Summary
CVE-2025-21222 is a serious vulnerability affecting Windows Telephony Service. A heap-based buffer overflow issue was identified, which enables an unauthorized attacker to inject malicious code over a network. Successful exploitation could result in arbitrary code execution with system-level privileges. This weakness poses a significant risk to systems that run the vulnerable software and could lead to serious security consequences. Microsoft urges users to apply the available patch as soon as possible to mitigate this threat.
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Affected Products
- Microsoft Windows 10
- Microsoft Windows 11
- Microsoft Windows Server 2008 R2
- Microsoft Windows Server 2022
Affected Vendors
- Microsoft