CVE-2026-62727

HighCVSS 7.0/10Last modified Oct 26, 2026

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-362

Affected software

VendorProductVersions
MicrosoftWindows 10 Version 1607>= 10.0.14393.0, < 10.0.14393.9418
MicrosoftWindows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.9121
MicrosoftWindows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.7663
MicrosoftWindows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.7663
MicrosoftWindows 11 version 23H2>= 10.0.22631.0, < 10.0.22631.7517
MicrosoftWindows 11 Version 23H2>= 10.0.22631.0, < 10.0.22631.7517
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.9168
MicrosoftWindows 11 Version 25H2>= 10.0.26200.0, < 10.0.26200.9168
MicrosoftWindows 11 version 26H1>= 10.0.28000.0, < 10.0.28000.2704
MicrosoftWindows Server 2012>= 6.2.9200.0, < 6.2.9200.26280
MicrosoftWindows Server 2012 (Server Core installation)>= 6.2.9200.0, < 6.2.9200.26280
MicrosoftWindows Server 2012 R2>= 6.3.9600.0, < 6.3.9600.23338
MicrosoftWindows Server 2012 R2 (Server Core installation)>= 6.3.9600.0, < 6.3.9600.23338
MicrosoftWindows Server 2016>= 10.0.14393.0, < 10.0.14393.9418
MicrosoftWindows Server 2016 (Server Core installation)>= 10.0.14393.0, < 10.0.14393.9418
MicrosoftWindows Server 2019>= 10.0.17763.0, < 10.0.17763.9121
MicrosoftWindows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.9121
MicrosoftWindows Server 2022>= 10.0.20348.0, < 10.0.20348.5499
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.33296
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.33296

References

Timeline

Published
Aug 19, 2026
Last modified
Oct 26, 2026
NVD status
Analyzed

Related CVEs from 2026

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CVE-2026-62727: High severity, CVSS 7.0 | Vulnix