CVE-2026-62701
High
Description
Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Windows
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- microsoft windows_10_160710.0.14393.9418 or later
- microsoft windows_10_180910.0.17763.9115 or later
- microsoft windows_10_21h210.0.19044.7663 or later
- microsoft windows_10_22h210.0.19045.7663 or later
- microsoft windows_11_23h210.0.22631.7517 or later
- microsoft windows_11_24h210.0.26100.9106 or later
- microsoft windows_11_25h210.0.26200.9106 or later
- microsoft windows_11_26h110.0.28000.2704 or later
- microsoft windows_server_201610.0.14393.9418 or later
- microsoft windows_server_201910.0.17763.9115 or later
- microsoft windows_server_202210.0.20348.5440 or later
- microsoft windows_server_202510.0.26100.33222 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1607 | v < 10.0.14393.9418 | 10.0.14393.9418 |
| microsoft windows_10_1809 | v < 10.0.17763.9115 | 10.0.17763.9115 |
| microsoft windows_10_21h2 | v < 10.0.19044.7663 | 10.0.19044.7663 |
| microsoft windows_10_22h2 | v < 10.0.19045.7663 | 10.0.19045.7663 |
| microsoft windows_11_23h2 | v < 10.0.22631.7517 | 10.0.22631.7517 |
| microsoft windows_11_24h2 | v < 10.0.26100.9106 | 10.0.26100.9106 |
| microsoft windows_11_25h2 | v < 10.0.26200.9106 | 10.0.26200.9106 |
| microsoft windows_11_26h1 | v < 10.0.28000.2704 | 10.0.28000.2704 |
| microsoft windows_server_2012 | No range specified, r2 | — |
| microsoft windows_server_2016 | v < 10.0.14393.9418 | 10.0.14393.9418 |
| microsoft windows_server_2019 | v < 10.0.17763.9115 | 10.0.17763.9115 |
| microsoft windows_server_2022 | v < 10.0.20348.5440 | 10.0.20348.5440 |
| microsoft windows_server_2025 | v < 10.0.26100.33222 | 10.0.26100.33222 |
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