High · published January 13, 2026
⚡ A crafty type confusion in the Windows Ancillary Function Driver could let an attacker elevate their privileges without breaking a sweat! 🔥 Think of it like using the wrong key to unlock a door — it opens up new rooms you're not supposed to access. This vulnerability allows authorized users to squeeze into higher-tier access uninvited, like sneaking into the VIP section of a club with a regular ticket. Imagine an attacker being able to change settings, access sensitive information, or even install malicious software—all because they found a way to switch roles. This privilege escalation could lead to devastating data breaches or system damage, putting the entire network at risk!
Think of it like using the wrong key to unlock a door — it opens up new rooms you're not supposed to access. This vulnerability allows authorized users to squeeze into higher-tier access uninvited, like sneaking into the VIP section of a club with a regular ticket. The vulnerability arises from type confusion in the Windows Ancillary Function Driver for WinSock, allowing an authorized user to exploit this flaw to gain elevated privileges on the local machine.
Imagine an attacker being able to change settings, access sensitive information, or even install malicious software—all because they found a way to switch roles. This privilege escalation could lead to devastating data breaches or system damage, putting the entire network at risk! Patch your systems as soon as Microsoft releases a fix for this CVE. Keep your software updated and regularly audit user permissions to ensure no unauthorized accounts have elevated access. Stay vigilant with your security practices! You've got this! Stay proactive, and you'll keep your systems secure. 🛡️
| 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_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 | < 10.0.14393.8783 | 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 |