High · published January 13, 2026
⚡ A race condition in Windows SMB Server lets an authorized attacker gain elevated privileges with just the right timing! ⏱️ Think of it like two chefs trying to use the same frying pan at the same time; if one chef doesn't wait for the pan to cool down, they might get control over the whole kitchen and ruin both dishes! 🍳 An attacker could exploit this flaw to take control over the server, allowing them to elevate their privileges and access sensitive data or even manipulate critical system functions. This could lead to unauthorized data breaches or system compromises, causing chaos on your network! 🔥
Think of it like two chefs trying to use the same frying pan at the same time; if one chef doesn't wait for the pan to cool down, they might get control over the whole kitchen and ruin both dishes! 🍳 The vulnerability arises from improper synchronization in the shared resource management of the SMB Server, allowing concurrent execution that can be manipulated by an attacker to gain higher access rights.
An attacker could exploit this flaw to take control over the server, allowing them to elevate their privileges and access sensitive data or even manipulate critical system functions. This could lead to unauthorized data breaches or system compromises, causing chaos on your network! 🔥 To mitigate this, ensure that your systems are updated with the latest patches from Microsoft. Review your network configurations and user permissions carefully to limit unauthorized access, and consider monitoring for unusual activities. Stay ahead of potential threats! 🛡️ You’ve got this! With these steps, you can secure your systems and maintain your hero status in cybersecurity! 🚀
| Product | Versions | Fixed in |
|---|---|---|
| microsoft/windows_10_1607 | < 10.0.14393.8783 | 10.0.14393.8783 |
| microsoft/windows_10_1607 | < 10.0.14393.8783 | 10.0.14393.8783 |
| microsoft/windows_10_1809 | < 10.0.17763.8276 | 10.0.17763.8276 |
| microsoft/windows_10_1809 | < 10.0.17763.8276 | 10.0.17763.8276 |
| microsoft/windows_10_21h2 | < 10.0.19044.6809 | 10.0.19044.6809 |
| microsoft/windows_10_21h2 | < 10.0.19044.6809 | 10.0.19044.6809 |
| microsoft/windows_10_21h2 | < 10.0.19044.6809 | 10.0.19044.6809 |
| microsoft/windows_10_22h2 | < 10.0.19045.6809 | 10.0.19045.6809 |
| microsoft/windows_10_22h2 | < 10.0.19045.6809 | 10.0.19045.6809 |
| microsoft/windows_10_22h2 | < 10.0.19045.6809 | 10.0.19045.6809 |
| microsoft/windows_11_23h2 | < 10.0.22631.6491 | 10.0.22631.6491 |
| microsoft/windows_11_23h2 | < 10.0.22631.6491 | 10.0.22631.6491 |
| microsoft/windows_11_24h2 | < 10.0.26100.7623 | 10.0.26100.7623 |
| microsoft/windows_11_24h2 | < 10.0.26100.7623 | 10.0.26100.7623 |
| microsoft/windows_11_25h2 | < 10.0.26200.7623 | 10.0.26200.7623 |
| microsoft/windows_11_25h2 | < 10.0.26200.7623 | 10.0.26200.7623 |
| microsoft/windows_server_2012 | all versions | — |
| microsoft/windows_server_2012 | all versions | — |
| microsoft/windows_server_2016 | < 10.0.14393.8783 | 10.0.14393.8783 |
| microsoft/windows_server_2019 | < 10.0.17763.8276 | 10.0.17763.8276 |
| microsoft/windows_server_2022 | < 10.0.20348.4648 | 10.0.20348.4648 |
| microsoft/windows_server_2022_23h2 | < 10.0.25398.2092 | 10.0.25398.2092 |
| microsoft/windows_server_2025 | < 10.0.26100.32230 | 10.0.26100.32230 |