Stack-Based Buffer Overflow in Windows Telephony Service by Microsoft
CVE-2025-27481

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
8 April 2025

What is CVE-2025-27481?

A stack-based buffer overflow exists within the Windows Telephony Service, enabling an unauthorized attacker to execute arbitrary code over the network. This vulnerability can be exploited to compromise system integrity and control, emphasizing the importance of patch management and proactive security measures.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20978

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7969

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7136

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.