Read the docs
TI-2020-16190 Aliases CVE-2020-26556GHSA-69j7-838h-x496

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device…

Priority LOW 35CWE-307Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-307.

Summary

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.

Why it matters now

EPSS 0.00914 60th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned

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 · 3

CPEVersionsRoleVendor
cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:*1.0b – 5.2VulnerableBluetooth
cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:*1.0.0VulnerableBluetooth
cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:*1.0.1VulnerableBluetooth
  • cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* Versions 1.0b – 5.2 Vulnerable ·Bluetooth
  • cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Bluetooth
  • cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 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: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 9AffectedNo fix planned: Will not fix
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-2020-26556
  2. 2026-10-03 Alias added: GHSA-69j7-838h-x496

References

Advisory 3

  • 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-2020-16189 Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2… CVSS 3.1MEDIUM 5.4
  • TI-2021-11713 Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0… CVSS 3.1MEDIUM 5.3
See all 9 →

Sources

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