high7.5
CVE-2026-77886
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
Impact
Out-of-bounds read in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1607 | before 10.0.14393.9512 |
| Microsoft | Windows 10 1809 | before 10.0.17763.9245 |
| 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 |
| Microsoft | Windows Server 2025 | before 10.0.26100.33438 |