High · published January 13, 2026
⚡ A sneaky twist in Windows Hello could let anyone with physical access mess with your device like a prankster rewriting your notes! 🤓 Think of it like a restaurant where a customer can simply walk into the kitchen and start switching ingredients around without anyone checking their credentials. That's how easily an unauthorized attacker could tamper with your system if left unpatched! This vulnerability could lead to unauthorized changes on your device, allowing attackers to bypass trust settings and alter critical permissions. The potential for tampering opens the door to all sorts of chaos, from data loss to system instability, making it crucial to address this flaw quickly!
Think of it like a restaurant where a customer can simply walk into the kitchen and start switching ingredients around without anyone checking their credentials. That's how easily an unauthorized attacker could tamper with your system if left unpatched! CVE-2026-20804 involves an incorrect privilege assignment in Windows Hello, which allows unauthorized users to perform local tampering on affected systems, potentially compromising their integrity.
This vulnerability could lead to unauthorized changes on your device, allowing attackers to bypass trust settings and alter critical permissions. The potential for tampering opens the door to all sorts of chaos, from data loss to system instability, making it crucial to address this flaw quickly! To safeguard your systems, make sure to apply the latest security patches from Microsoft that address this issue. Regularly audit your device settings and limit physical access to sensitive machines. Keeping your systems updated is crucial! You've got this! With the right actions, you can lock down your systems and keep the pranksters at bay! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| 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_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_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 |