CVE-2025-21201
Windows Telephony Server Remote Code Execution Vulnerability
HIGH
8.8
CVSS Score
Published: February 11, 2025 at 05:58 PM UTC
Updated: June 17, 2026 at 08:42 AM UTC
16 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012
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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
No known exploit
Description
Windows Telephony Server Remote Code Execution Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 10.0.10240.20915, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.14393.7785, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.17763.6893, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19044.5487, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19045.5487, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22621.4890, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22631.4890, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26100.3194, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.6003.23117, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.7601.27566, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.9200.25317, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.9600.22417, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21201SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.8HIGHmicrosoft
Vector?
Quick Info
StatusANALYZED
CWE
CWE-415NVD-CWE-noinfo
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