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HIGH · 7.7

CVE-2021-1638

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 ...

Vulnerability 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

CVSS Score

7.7

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftWindows 1020h2
MicrosoftWindows Server 201620h2
MicrosoftWindows Server 2019-

References

FAQ

What is CVE-2021-1638?

CVE-2021-1638 is a vulnerability with a CVSS score of 7.7 (HIGH). 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 ...

How severe is CVE-2021-1638?

CVE-2021-1638 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1638?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.