High · published January 13, 2026
⚡ A sneaky race condition in the Windows SMB Server allows an authorized attacker to elevate their privileges like a backstage pass to the VIP section of a concert! 🎟️ Think of the SMB Server as a bustling restaurant where staff are sharing a single order pad. If two waiters mistakenly take orders simultaneously, one might get a dish that wasn’t intended for them, leading to mix-ups. Here, the race condition is that chaotic moment where the orders collide! With this vulnerability, an authorized attacker can exploit this race condition to gain elevated privileges, allowing them to access sensitive data or control resources they shouldn’t. Imagine someone at the concert not only getting into the VIP area but also taking over the DJ booth and changing the entire playlist! This could lead to system compromise and unauthorized access across the network.
Think of the SMB Server as a bustling restaurant where staff are sharing a single order pad. If two waiters mistakenly take orders simultaneously, one might get a dish that wasn’t intended for them, leading to mix-ups. Here, the race condition is that chaotic moment where the orders collide! This vulnerability in the Windows SMB Server arises from improper synchronization during concurrent executions, letting an attacker exploit shared resources to elevate their privileges on the network.
With this vulnerability, an authorized attacker can exploit this race condition to gain elevated privileges, allowing them to access sensitive data or control resources they shouldn’t. Imagine someone at the concert not only getting into the VIP area but also taking over the DJ booth and changing the entire playlist! This could lead to system compromise and unauthorized access across the network. To protect against this, make sure to apply the latest security patches from Microsoft, specifically targeting the Windows SMB Server. Additionally, review your system configurations and user privileges to minimize potential attack vectors. You've got this! Stay proactive, apply those updates, and keep your systems safe! 🛡️
| 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_22h2 | < 10.0.19045.6809 | 10.0.19045.6809 |
| 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_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 | < 10.0.26100.7623 | 10.0.26100.7623 |