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CVE-2025-21200

HIGHCVSS 8.8/10EPSS 1.84%

Last modified

CVE-2025-21200 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Windows Telephony Service Remote Code Execution Vulnerability. EPSS estimates a 1.84% chance of exploitation in the next 30 days.

Description

Windows Telephony Service Remote Code Execution Vulnerability

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability
1.84%

76.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MicrosoftWindows 10 1507< 10.0.10240.20915—
MicrosoftWindows 10 1607< 10.0.14393.7785—
MicrosoftWindows 10 1809< 10.0.17763.6893—
MicrosoftWindows 10 21h2< 10.0.19044.5487—
MicrosoftWindows 10 22h2< 10.0.19045.5487—
MicrosoftWindows 11 22h2< 10.0.22621.4890—
MicrosoftWindows 11 23h2< 10.0.22631.4890—
MicrosoftWindows 11 24h2< 10.0.26100.3194—
MicrosoftWindows Server 2008All versionsSp2
MicrosoftWindows Server 2008r2Sp1
MicrosoftWindows Server 2012All versions—
MicrosoftWindows Server 2012r2—
MicrosoftWindows Server 2016< 10.0.14393.7785—
MicrosoftWindows Server 2019< 10.0.17763.6893—
MicrosoftWindows Server 2022< 10.0.20348.3207—
MicrosoftWindows Server 2022 23h2< 10.0.25398.1425—
MicrosoftWindows Server 2025< 10.0.26100.3194—

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-21200?
Windows Telephony Service Remote Code Execution Vulnerability
How severe is CVE-2025-21200?
CVE-2025-21200 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.
How do I fix CVE-2025-21200?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21200?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST