Windows Bluetooth Security Feature Bypass Vulnerability
CVE-2021-1638 is fixed in 19 products on 1 platform, first by KB4598245, released January 12, 2021. It is not reported as exploited. Patch Radar priority: High.
<p>Microsoft is aware of the "Impersonation in the Passkey Entry Protocol" vulnerability. For more information regarding the vulnerability, please see this <a href="https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/passkey-impersonation/">statement</a> from the Bluetooth SIG.</p> <p>To address the vulnerability, Microsoft has released a software update that will fail attempts to pair if the remote device exchanges a public key with the same X coordinate as the locally exchanged public key</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1803 for 32-bit Systems | 17134.1967 | KB4598245 | Jan 12, 2021 |
| Windows 10 Version 1803 for ARM64-based Systems | 17134.1967 | KB4598245 | Jan 12, 2021 |
| Windows 10 Version 1803 for x64-based Systems | 17134.1967 | KB4598245 | Jan 12, 2021 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.1697 | KB4598230 | Jan 12, 2021 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.1697 | KB4598230 | Jan 12, 2021 |
| Windows 10 Version 1809 for x64-based Systems | 17763.1697 | KB4598230 | Jan 12, 2021 |
| Windows 10 Version 1909 for 32-bit Systems | 18363.1316 | KB4598229 | Jan 12, 2021 |
| Windows 10 Version 1909 for ARM64-based Systems | 18363.1316 | KB4598229 | Jan 12, 2021 |
| Windows 10 Version 1909 for x64-based Systems | 18363.1316 | KB4598229 | Jan 12, 2021 |
| Windows 10 Version 2004 for 32-bit Systems | KB4598242 | Jan 12, 2021 | |
| Windows 10 Version 2004 for ARM64-based Systems | KB4598242 | Jan 12, 2021 | |
| Windows 10 Version 2004 for x64-based Systems | KB4598242 | Jan 12, 2021 | |
| Windows 10 Version 20H2 for 32-bit Systems | KB4598242 | Jan 12, 2021 | |
| Windows 10 Version 20H2 for ARM64-based Systems | KB4598242 | Jan 12, 2021 | |
| Windows Server 2019 | 17763.1697 | KB4598230 | Jan 12, 2021 |
| Windows Server 2019 (Server Core installation) | 17763.1697 | KB4598230 | Jan 12, 2021 |
| Windows Server, version 1909 (Server Core installation) | 18363.1316 | KB4598229 | Jan 12, 2021 |
| Windows Server, version 2004 (Server Core installation) | KB4598242 | Jan 12, 2021 | |
| Windows Server, version 20H2 (Server Core Installation) | KB4598242 | Jan 12, 2021 | |
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