// For flags

CVE-2021-31615

 

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Los enlaces de banda base de Bluetooth Low Energy sin cifrar en Bluetooth Core Specifications versiones 4.0 hasta 5.2, pueden permitir a un dispositivo adyacente inyectar un paquete diseñado durante la ventana de recepción del dispositivo de escucha antes de que el dispositivo transmisor inicie su transmisión de paquetes para lograr un estado de tipo MITM completo sin terminar el enlace. Cuando se aplica contra dispositivos que establecen o usan enlaces cifrados, los paquetes diseñados pueden ser usados para terminar un enlace existente, pero no comprometerán la confidencialidad o la integridad del enlace

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Adjacent
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-23 CVE Reserved
  • 2021-06-25 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Bluetooth
Search vendor "Bluetooth"
 Bluetooth Core Specification
Search vendor "Bluetooth" for product "Bluetooth Core Specification"
 >= 4.0 <= 5.2
Search vendor "Bluetooth" for product "Bluetooth Core Specification" and version " >= 4.0 <= 5.2"
-
Affected