Read the docs
TI-2020-08189 Aliases CVE-2020-10134GHSA-4fx5-wvjj-h2jp

Bluetooth devices supporting LE and specific BR/EDR implementations are vulnerable to method confusion attacks

Priority LOW 29CWE-351Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

Pairing in Bluetooth® Core v5.2 and earlier may permit an unauthenticated attacker to acquire credentials with two pairing devices via adjacent access when the unauthenticated user initiates different pairing methods in each peer device and an end-user erroneously completes both pairing procedures with the MITM using the confirmation number of one peer as the passkey of the other. An adjacent, unauthenticated attacker could be able to initiate any Bluetooth operation on either attacked device exposed by the enabled Bluetooth profiles. This exposure may be limited when the user must authorize certain access explicitly, but so long as a user assumes that it is the intended remote device requesting permissions, device-local protections may be weakened.

Why it matters now

EPSS 0.0067 52nd 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
BluetoothLE5.2 – 5.2—No fix listedCNA
  • LE VendorBluetooth Affected 5.2 – 5.2 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:br:*:*:*up to 5.2VulnerableBluetooth
cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:edr:*:*:*up to 5.2VulnerableBluetooth
cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:le:*:*:*up to 5.2VulnerableBluetooth
  • cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:br:*:*:* Versions up to 5.2 Vulnerable ·Bluetooth
  • cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:edr:*:*:* Versions up to 5.2 Vulnerable ·Bluetooth
  • cpe:2.3:a:bluetooth:bluetooth_core:*:*:*:*:le:*:*:* Versions up to 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 →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 9AffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-10134
  2. 2026-10-03 Alias added: GHSA-4fx5-wvjj-h2jp
  3. 2026-10-11 EPSS moved to the 50th–90th percentile

References

Advisory 2

  • TI-2020-08190 Bluetooth devices supporting BR/EDR v5.2 and earlier are vulnerable to impersonation attacks CVSS 3.1MEDIUM 5.4

Sources

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