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CVE-2021-21367

24
FAUCET Score

CVE-2021-21367 is an incorrect authorization vulnerability in the Switchboard Bluetooth Plug for elementary OS versions 2.3.0 through 2.3.4. When the Bluetooth plug is in discoverable mode, it automatically accepts pairing and service requests, allowing physically proximate attackers to connect without user consent. This vulnerability carries a CVSS score of 8.1 (HIGH), indicating that an attacker with adjacent network access can achieve high confidentiality and integrity impacts with low attack complexity. While no active exploits, public exploit code, or significant community discussion have been identified, users are advised to update to version 2.3.5 or restrict Bluetooth plug usage to mitigate risks.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.3.0, < 2.3.5CPE matchmatch criteria
cpe:2.3:a:elementary:switchboard_bluetooth_plug:*:*:*:*:*:elementary_os:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 40th percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / elementary/switchboard-plug-bluetooth/commit/86500e645a907538abafe5225b67cc12c03e7645
PatchThird Party Advisory
github.com / elementary/switchboard-plug-bluetooth/releases/tag/2.3.5
Release NotesThird Party Advisory
github.com / elementary/switchboard-plug-bluetooth/security/advisories/GHSA-5p3g-j69g-w2mq
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/AV7WKO5SZHTF3QEMX4WZ576HRECIG6VQ
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/O7TCGM4B45VLUJDCE5PHFYA5KBNHD4RA
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/SWUPPVFG76PXQA3AHSGKYPRMVZ5AYHZI