high7.5
CVE-2026-42909
Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute…
Impact
Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Remote Desktop Client | before 1.2.7214 |
| Microsoft | Windows App | before 2.0.1193.0 |
| Microsoft | Windows 10 1607 | before 10.0.14393.9234 |
| Microsoft | Windows 10 1809 | before 10.0.17763.8880 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.7417 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.7417 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.7219 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.8655 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.8655 |
| Microsoft | Windows 11 26h1 | before 10.0.28000.2269 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.9234 |