Vulnerability · NVD
CVE-2025-21233
HIGH 8.8
Vendor bulletin scale — NVD CVSS pending
Windows Telephony Service Remote Code Execution Vulnerability
EPSS
1.69%
above median
percentile 74.9%
OS versions that fix this CVE
This CVE is resolved by the following OS security releases. Update the OS to at least the listed version.
- Windows Server 2025 Fixed in 10.0.26100.2894
- Windows Server 2022 (Server Core installation) Fixed in 10.0.20348.3091
- Windows Server 2022 Fixed in 10.0.25398.1369
- Windows Server 2019 Fixed in 10.0.17763.6775
- Windows Server 2016 Fixed in 10.0.14393.7699
- Windows 11 24H2 · 2024-H2 Fixed in 10.0.26100.2894
- Windows 11 23H2 · 2023-H2 Fixed in 10.0.22631.4751
- Windows 11 22H2 · 2022-H2 Fixed in 10.0.22621.4751
- Windows 10 22H2 · 2022-H2 Fixed in 10.0.19045.5371
- Windows 10 21H2 · 2021-H2 Fixed in 10.0.19044.5371
- Windows 10 1809 · 2018-09 Fixed in 10.0.17763.6775
- Windows 10 1607 · 2016-07 Fixed in 10.0.14393.7699