CVE-2021-1638

Windows Bluetooth Security Feature Bypass Vulnerability

High · published January 12, 2021

CVSS v3.1
7.7
EPSS
1%
Percentile
68.7
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01229 · 68.7th percentile
Published
2021-01-12T19:41Z
EPSS history
Timeline
  • 12 JAN 19:41Z
    Windows Bluetooth Security Feature Bypass Vulnerability
    cvelistv5