CVE-2025-21409

Windows Telephony Service Remote Code Execution Vulnerability

State: Published
Severity: 8.8 High
Published: Jan 14, 2025
Updated: Jun 9, 2026
Reserved: Dec 11, 2024

Description

Windows Telephony Service Remote Code Execution Vulnerability

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	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	microsoft

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
Windows 10 Version 1507Microsoft	10.0.10240.0 to before 10.0.10240.20890Affected
Windows 10 Version 1607Microsoft	10.0.14393.0 to before 10.0.14393.7699Affected
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.6775Affected
Windows 10 Version 21H2Microsoft	10.0.19044.0 to before 10.0.19044.5371Affected
Windows 10 Version 22H2Microsoft	10.0.19045.0 to before 10.0.19045.5371Affected
Windows 11 version 22H2Microsoft	10.0.22621.0 to before 10.0.22621.4751Affected
Windows 11 version 22H3Microsoft	10.0.22631.0 to before 10.0.22631.4751Affected
Windows 11 Version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.4751Affected
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.2894Affected
Windows Server 2008 R2 Service Pack 1Microsoft	6.1.7601.0 to before 6.1.7601.27520Affected
Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft	6.1.7601.0 to before 6.1.7601.27520Affected
Windows Server 2008 Service Pack 2Microsoft	6.0.6003.0 to before 6.0.6003.23070Affected
Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft	6.0.6003.0 to before 6.0.6003.23070Affected
Windows Server 2012Microsoft	6.2.9200.0 to before 6.2.9200.25273Affected
Windows Server 2012 (Server Core installation)Microsoft	6.2.9200.0 to before 6.2.9200.25273Affected
Windows Server 2012 R2Microsoft	6.3.9600.0 to before 6.3.9600.22371Affected
Windows Server 2012 R2 (Server Core installation)Microsoft	6.3.9600.0 to before 6.3.9600.22371Affected
Windows Server 2016Microsoft	10.0.14393.0 to before 10.0.14393.7699Affected
Windows Server 2016 (Server Core installation)Microsoft	10.0.14393.0 to before 10.0.14393.7699Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.6775Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.6775Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.3091Affected
Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft	10.0.25398.0 to before 10.0.25398.1369Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.2894Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.2894Affected

References

Windows Telephony Service Remote Code Execution Vulnerabilityvendor-advisorypatch

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