CVE-2026-48564
High
Description
Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to execute code over a network.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Microsoft Windows
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- microsoft windows_10_160710.0.14393.9339 or later
- microsoft windows_10_180910.0.17763.9020 or later
- microsoft windows_server_201610.0.14393.9339 or later
- microsoft windows_server_201910.0.17763.9020 or later
- microsoft windows_server_202210.0.20348.5386 or later
- microsoft windows_server_202510.0.26100.33158 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1607 | v < 10.0.14393.9339 | 10.0.14393.9339 |
| microsoft windows_10_1809 | v < 10.0.17763.9020 | 10.0.17763.9020 |
| microsoft windows_server_2012 | No range specified, r2 | — |
| microsoft windows_server_2016 | v < 10.0.14393.9339 | 10.0.14393.9339 |
| microsoft windows_server_2019 | v < 10.0.17763.9020 | 10.0.17763.9020 |
| microsoft windows_server_2022 | v < 10.0.20348.5386 | 10.0.20348.5386 |
| microsoft windows_server_2025 | v < 10.0.26100.33158 | 10.0.26100.33158 |
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