high7.5
CVE-2026-69789
Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
Impact
Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 Version 21H2 | from 10.0.19044.0 before 10.0.19044.7725 |
| Microsoft | Windows 11 Version 26H1 | from 10.0.28000.0 before 10.0.28000.2954 |
| Microsoft | Windows 10 Version 1607 | from 10.0.14393.0 before 10.0.14393.9512 |
| Microsoft | Windows Server 2012 (Server Core Installation) | from 6.2.9200.0 before 6.2.9200.26349 |
| Microsoft | Windows 10 Version 1809 | from 10.0.17763.0 before 10.0.17763.9245 |
| Microsoft | Windows Server 2016 (Server Core Installation) | from 10.0.14393.0 before 10.0.14393.9512 |
| Microsoft | Windows Server 2025 (Server Core Installation) | from 10.0.26100.0 before 10.0.26100.33438 |
| Microsoft | Windows Server 2019 | from 10.0.17763.0 before 10.0.17763.9245 |
| Microsoft | Windows Server 2019 (Server Core Installation) | from 10.0.17763.0 before 10.0.17763.9245 |
| Microsoft | Windows 11 Version 24H2 | from 10.0.26100.0 before 10.0.26100.9445 |
| Microsoft | Windows Server 2022 | from 10.0.20348.0 before 10.0.20348.5622 |
| Microsoft | Windows Server 2012 R2 (Server Core Installation) | from 6.3.9600.0 before 6.3.9600.23398 |
| Microsoft | Windows 10 1607 | before 10.0.14393.9512 |
| Microsoft | Windows 10 1809 | before 10.0.17763.9245 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.7725 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.7725 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.7582 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.9445 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.9445 |
| Microsoft | Windows 11 26h1 | before 10.0.28000.2954 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.9512 |
| Microsoft | Windows Server 2019 | before 10.0.17763.9245 |
| Microsoft | Windows Server 2022 | before 10.0.20348.5622 |