CVE-2025-21407

HIGH

Microsoft Windows 10 1507 < 10.0.10240.20915 - Heap Buffer Overflow

Title source: rule
STIX 2.1

Description

Windows Telephony Service Remote Code Execution Vulnerability

References (1)

Core 1
Core References
Patch, Vendor Advisory vendor-advisory patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21407

Scores

CVSS v3 8.8
EPSS 0.0016
EPSS Percentile 37.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-122
Status published
Products (17)
microsoft/windows_10_1507 < 10.0.10240.20915 (2 CPE variants)
microsoft/windows_10_1607 < 10.0.14393.7785 (2 CPE variants)
microsoft/windows_10_1809 < 10.0.17763.6893 (2 CPE variants)
microsoft/windows_10_21h2 < 10.0.19044.5487
microsoft/windows_10_22h2 < 10.0.19045.5487
microsoft/windows_11_22h2 < 10.0.22621.4890
microsoft/windows_11_23h2 < 10.0.22631.4890
microsoft/windows_11_24h2 < 10.0.26100.3194
microsoft/windows_server_2008 (2 CPE variants)
microsoft/windows_server_2008 r2 sp1
... and 7 more
Published Feb 11, 2025
Tracked Since Feb 18, 2026