Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-3658

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 2 products from bluez, from fedoraproject organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-03-02T23:15:08.787

Last Modified

2026-06-17T04:05:31.110

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:P/I:N/A:N

Access Vector: ADJACENT_NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

6.5

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-863
Type: Primary
CWE-863

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	bluez	bluez	< 5.61	Yes
Operating System	fedoraproject	fedora	34	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=1984728 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055 Patch, Third Party Advisory ([email protected])
https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055 Patch, Third Party Advisory ([email protected])
https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20220407-0002/ Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1984728 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20220407-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For bluez's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.