high7.5
CVE-2025-26634
Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
Impact
Heap-based buffer overflow in Windows Core Messaging allows an authorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1507 | before 10.0.10240.20915 |
| Microsoft | Windows 10 1607 | before 10.0.14393.7785 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.5487 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.5487 |
| Microsoft | Windows 11 22h2 | before 10.0.22621.4890 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.4890 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.3194 |
| Microsoft | Windows Server 2016 | before 10.0.14393.7785 |
| Microsoft | Windows Server 2019 | before 10.0.17763.6893 |
| Microsoft | Windows Server 2022 | before 10.0.20348.3207 |
| Microsoft | Windows Server 2022 23h2 | before 10.0.25398.1425 |
| Microsoft | Windows Server 2025 | before 10.0.26100.3194 |