Remote Code Execution Vulnerability in Windows Telephony Service by Microsoft
CVE-2025-21286

8.8HIGH

Key Information:

Vendor
Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
14 January 2025

Summary

A vulnerability exists in the Windows Telephony Service that could allow an attacker to execute arbitrary code on the system. If exploited, this could provide the attacker with the ability to install programs; view, change, or delete data; or create new accounts with full user rights. The vulnerability occurs due to improper handling of calls, leading to potential remote exploitation. Systems should be updated with the latest security patches to mitigate these risks.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20890

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7699

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.6775

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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