CVE-2025-27477
high-risk
Published 2025-04-08
Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
Do I need to act?
~
3.5% chance of exploitation in next 30 days
EPSS score — moderate 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 Products (20)
Affected Vendors
References (1)
57
/ 100
high-risk
Severity
30/34 · Critical
Exploitability
7/34 · Low
Exposure
20/34 · Moderate