CVE-2020-15802

MEDIUM
5.9
CVSS Score
Published: September 11, 2020 at 01:07 PM UTC
Updated: June 17, 2026 at 02:57 AM UTC
1 product affected across 1 vendorBluetooth Core Specification

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Severity
MEDIUM5.9
Exploit prediction
EPSS 7%

Description

Devices supporting Bluetooth before 5.1 may allow man-in-the-middle attacks, aka BLURtooth. Cross Transport Key Derivation in Bluetooth Core Specification v4.2 and v5.0 may permit an unauthenticated user to establish a bonding with one transport, either LE or BR/EDR, and replace a bonding already established on the opposing transport, BR/EDR or LE, potentially overwriting an authenticated key with an unauthenticated key, or a key with greater entropy with one with less.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.1
Affected range stops below 5.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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