CVE-2025-21252
vulnerability analysis and mitigation

Overview

CVE-2025-21252 is a Windows Telephony Service Remote Code Execution Vulnerability that was discovered and recorded on December 10, 2024. The vulnerability affects various versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and Windows Server editions (CVE Mitre).

Technical details

The vulnerability has been assigned a severity score of 9.0 CVSS with the vector (AV:N/AC:M/Au:N/C:C/I:C/A:C), indicating a critical security issue. This scoring suggests the vulnerability is network exploitable with moderate attack complexity and requires no authentication (Rapid7).

Impact

The vulnerability affects multiple versions of Microsoft Windows systems, including Windows 10 (versions 1507 through 22H2), Windows 11 (versions 22H2 through 24H2), and various Windows Server editions from 2012 to 2025 (Rapid7).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability across affected systems. The patches are available through various KB updates including KB5050013, KB5049993, KB5050008, KB5049981, KB5050021, and others for different Windows versions (Rapid7).

Additional resources


SourceThis report was generated using AI

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management