What is CVE-2025-21201?

CVE-2025-21201 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Telephony Server Remote Code Execution Vulnerability

Which CVE IDs does CVE-2025-21201 cover?

CVE-2025-21201 covers the following CVE IDs: CVE-2025-21201. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-21201?

CVE-2025-21201 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

CVE-2025-21201HighCVSS 8.8

Windows Telephony Server Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

June 3, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-21201 →