Vulnerability · Published Jan 12, 2021 · Assigned by microsoft
CVE-2021-1638Windows Bluetooth Security Feature Bypass Vulnerability
High 7.7
In plain English
A high-severity security flaw in Windows 10 Version 1803 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)1.2%top 31.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Microsoft is aware of the "Impersonation in the Passkey Entry Protocol" vulnerability. For more information regarding the vulnerability, please see this statement from the Bluetooth SIG. 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 20H2 | 10.0.0 – before publication |
| Microsoft | Windows Server version 20H2 | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1803 | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1809 | 10.0.0 – before publication |
| Microsoft | Windows Server 2019 | 10.0.0 – before publication |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1909 | 10.0.0 – before publication |
| Microsoft | Windows Server, version 1909 (Server Core installation) | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before publication |
| Microsoft | Windows Server version 2004 | 10.0.0 – before publication |
References
- Windows Bluetooth Security Feature Bypass Vulnerability vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1638 x_refsource_MISC, x_transferred