High · published December 9, 2025
⚡ A sneaky null pointer dereference in the Windows Client-Side Caching (CSC) Service could let an authorized attacker elevate their privileges locally and become a super-user! 🔥 Think of it like a restaurant where a waiter forgets to check your ID before serving you the chef's special — anyone with access can suddenly order anything from the menu, even dishes they shouldn't have access to. This vulnerability could allow a local attacker to gain elevated privileges, effectively giving them the keys to the kitchen! They could modify system settings, install malicious software, or access sensitive data, making it a significant threat to system integrity.
Think of it like a restaurant where a waiter forgets to check your ID before serving you the chef's special — anyone with access can suddenly order anything from the menu, even dishes they shouldn't have access to. The null pointer dereference in the CSC Service arises from improper validation of user input, allowing an attacker with authorized access to exploit this flaw and execute arbitrary code with elevated privileges.
This vulnerability could allow a local attacker to gain elevated privileges, effectively giving them the keys to the kitchen! They could modify system settings, install malicious software, or access sensitive data, making it a significant threat to system integrity. To mitigate this issue, ensure your systems are updated with the latest patches from Microsoft. Regularly review user permissions and limit access to essential functions only. Implement strict monitoring of user activities as a precaution. You’ve got this, security hero! Follow these steps, and you’ll ensure your systems are safe and sound! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| microsoft/windows_10_1607 | < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft/windows_10_1607 | < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft/windows_10_1809 | < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft/windows_10_1809 | < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft/windows_10_21h2 | < 10.0.19044.6691 | 10.0.19044.6691 |
| microsoft/windows_10_22h2 | < 10.0.19045.6691 | 10.0.19045.6691 |
| microsoft/windows_11_23h2 | < 10.0.22631.6345 | 10.0.22631.6345 |
| microsoft/windows_11_24h2 | < 10.0.26100.7392 | 10.0.26100.7392 |
| microsoft/windows_11_25h2 | < 10.0.26200.7392 | 10.0.26200.7392 |
| microsoft/windows_server_2008 | all versions | — |
| microsoft/windows_server_2008 | all versions | — |
| microsoft/windows_server_2008 | all versions | — |
| microsoft/windows_server_2012 | all versions | — |
| microsoft/windows_server_2012 | all versions | — |
| microsoft/windows_server_2016 | < 10.0.14393.8688 | 10.0.14393.8688 |
| microsoft/windows_server_2019 | < 10.0.17763.8146 | 10.0.17763.8146 |
| microsoft/windows_server_2022 | < 10.0.20348.4467 | 10.0.20348.4467 |
| microsoft/windows_server_2022_23h2 | < 10.0.25398.2025 | 10.0.25398.2025 |
| microsoft/windows_server_2025 | < 10.0.26100.7392 | 10.0.26100.7392 |