CVE-2021-3658: Bluez

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

bluetoothd from bluez incorrectly saves adapters' Discoverable status when a device is powered down, and restores it when powered up. If a device is powered down while discoverable, it will be discoverable when powered on again. This could lead to inadvertent exposure of the bluetooth stack to physically nearby attackers.

Affected products

• Bluez Bluez: before 5.61 (fixed in 5.61)
• Fedoraproject Fedora: version 34 only

Published 2022-03-02. Last modified 2026-06-17.