CVE-2025-21239 HIGH

CVE-2025-21239: Windows Telephony Service Remote Code Execution Vulnerability

Vendor Microsoft
Product Windows 10 Version 1507
Weakness CWE-122
Published January 14, 2025
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Windows Telephony Service Remote Code Execution Vulnerability

Key dates

02Disclosure timeline

January 14, 2025 CVE published
June 9, 2026 Record updated