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TI-2021-11713 Aliases CVE-2021-31615GHSA-m25v-4656-g8pc

Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0…

Priority LOW 24CWE-362Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00405 34th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:*4.0 – 5.2VulnerableBluetooth
  • cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* Versions 4.0 – 5.2 Vulnerable ·Bluetooth

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31615
  2. 2026-10-03 Alias added: GHSA-m25v-4656-g8pc

References

Advisory 2

  • TI-2020-12437 Devices supporting Bluetooth before 5.1 may allow man-in-the-middle attacks, aka… CVSS 3.1MEDIUM 5.9
  • TI-2023-09808 Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in… CVSS 3.1MEDIUM 6.8
  • TI-2022-09406 Bluetooth® Pairing in Bluetooth Core Specification v1.0B through v5.3 may permit an… CVSS 3.1HIGH 7.5
  • TI-2022-09405 Bluetooth® Low Energy Pairing in Bluetooth Core Specification v4.0 through v5.3 may… CVSS 3.1HIGH 7.5
  • TI-2020-16190 Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device… CVSS 3.1HIGH 7.5
  • TI-2020-16189 Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2… CVSS 3.1MEDIUM 5.4
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences