TI-2020-17999 Aliases CVE-2020-35473 GHSA-qw9m-cx2j-p94f

An information leakage vulnerability in the Bluetooth Low Energy advertisement scan…

LOW 20CWE-294Published 2022-11-08 · Updated 2025-05-01

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass, Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-294 and CWE-203.

Summary

An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core Specifications 4.0 through 5.2, and extended scan response in Bluetooth Core Specifications 5.0 through 5.2, may be used to identify devices using Resolvable Private Addressing (RPA) by their response or non-response to specific scan requests from remote addresses. RPAs that have been associated with a specific remote device may also be used to identify a peer in the same manner by using its reaction to an active scan request. This has also been called an allowlist-based side channel.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00394 33rd percentileScored 2026-11-08

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:bluetooth:bluetooth_core_specification::::::::	4.0 – 5.2	Vulnerable	Bluetooth

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

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-35473
2026-10-03 Alias added: GHSA-qw9m-cx2j-p94f

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