CVE-2021-31615

Description

Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an adjacent device to inject a crafted packet during the receive window of the listening device before the transmitting device initiates its packet transmission to achieve full MITM status without terminating the link. When applied against devices establishing or using encrypted links, crafted packets may be used to terminate an existing link, but will not compromise the confidentiality or integrity of the link.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory bluetooth.com Vendor Advisory bluetooth.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bluetooth.com vendor advisory
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/injectable/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-31615?
CVE-2021-31615 has been scored as a medium severity vulnerability.
How to fix CVE-2021-31615?
To fix CVE-2021-31615, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31615 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-31615 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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