CVE-2025-21240

high-risk
Published 2025-01-14

Windows Telephony Service Remote Code Execution Vulnerability

Do I need to act?

-
0.90% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Vendors

53
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 3/34 · Minimal
Exposure 20/34 · Moderate