CVE-2026-42912
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
A race condition in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker can gain higher privileges on the system, potentially leading to full compromise of the workstation or server.
Recommendation
Apply the security update from Microsoft for Windows Telephony Service.
Other vulnerabilities in Windows Telephony Service
See all- CVE-2026-42825High
A 'use after free' vulnerability in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-40382High
A use after free vulnerability in Windows Telephony Service allows an authorized attacker to locally elevate privileges.
- CVE-2026-34338High
A use after free vulnerability in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-62727High
A race condition in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-62748High
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-62734High
A race condition exists in the Windows Telephony Service during concurrent execution using shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-62732High
A heap-based buffer overflow exists in the Windows Telephony Service. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-62729High
A race condition exists in the Windows Telephony Service during concurrent execution using shared resources. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-62726High
A use after free vulnerability exists in the Windows Telephony Service. This allows an authorized attacker to elevate privileges locally.
- CVE-2026-62725High
A use after free vulnerability exists in the Windows Telephony Service. This allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

