High · published January 13, 2026
⚠️ A sneaky null pointer dereference in Windows LSASS could give an unauthorized attacker the power to pull the plug on your network! Think of LSASS as the gatekeeper of a fortress; a null pointer dereference is like a faulty guard who forgets their post, leaving the entrance vulnerable to anyone who wants to cause trouble. If exploited, this vulnerability could lead to a denial of service, effectively shutting down critical security services on your Windows network. Imagine your fortress without a gatekeeper — anyone could stroll in and disrupt operations! 🔥
Think of LSASS as the gatekeeper of a fortress; a null pointer dereference is like a faulty guard who forgets their post, leaving the entrance vulnerable to anyone who wants to cause trouble. The null pointer dereference flaw in LSASS allows an attacker to crash the service by sending specially crafted requests, resulting in disrupted communication and potential service outages.
If exploited, this vulnerability could lead to a denial of service, effectively shutting down critical security services on your Windows network. Imagine your fortress without a gatekeeper — anyone could stroll in and disrupt operations! 🔥 To protect your network, immediately apply the latest security updates from Microsoft that address this vulnerability. Additionally, monitor your network for unusual activity that could indicate attempts to exploit this issue. You've got this! With these steps, you'll bolster your defenses and keep that fortress standing strong! 🛡️
| 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 |