Is CVE-2023-45866 in the CISA KEV catalog?

No. CVE-2023-45866 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-45866?

CVE-2023-45866 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2023-45866?

CVE-2023-45866 has an EPSS score of 7.88% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-45866?

Upgrade bluez on debian 11 to 5.55-3.1+deb11u1 or later. Fixes are available for 31 affected products.

CVE & CISA-KEV Catalog

CVE-2023-45866

MEDIUMEPSS 94th pctl

6.3

CVSS v3

NVD

Description

Bluetooth HID Hosts in BlueZ may permit an unauthenticated Peripheral role HID Device to initiate and establish an encrypted connection, and accept HID keyboard reports, potentially permitting injection of HID messages when no user interaction has occurred in the Central role to authorize such access. An example affected package is bluez 5.64-0ubuntu1 in Ubuntu 22.04LTS. NOTE: in some cases, a CVE-2020-0556 mitigation would have already addressed this Bluetooth HID Hosts issue.

CWE-287Improper Authentication

How to fix

Remediation Available

bluezDebian

Fixed in:5.55-3.1+deb11u1CVE-2023-45866

Fixed in:5.66-1+deb12u1CVE-2023-45866

Fixed in:5.70-1.1CVE-2023-45866

bluezRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluezRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cupsRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cupsRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cups-debuginfoRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cups-debuginfoRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debuginfoRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debuginfoRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debugsourceRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debugsourceRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-hid2hciRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

bluez-hid2hciRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

bluez-hid2hci-debuginfoRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-hid2hci-debuginfoRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libsRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libsRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-debuginfoRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-debuginfoRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-develRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-develRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-devel-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-devel-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-mesh-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-mesh-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexdRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexdRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexd-debuginfoRed Hat / RHEL

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexd-debuginfoRocky

Fixed in:0:5.63-3.el8_10RHSA-2024:11154

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluezUbuntu

Fixed in:5.37-0ubuntu5.3+esm3USN-6540-1

Fixed in:5.48-0ubuntu3.9+esm1USN-6540-1

Fixed in:5.53-0ubuntu3.7USN-6540-1

Fixed in:5.64-0ubuntu1.1USN-6540-1

Fixed in:5.66-0ubuntu1.1USN-6540-1

Fixed in:5.68-0ubuntu1.1USN-6540-1

libbluetooth3Ubuntu

Fixed in:5.37-0ubuntu5.3+esm3USN-6540-1

Fixed in:5.48-0ubuntu3.9+esm1USN-6540-1

Fixed in:5.53-0ubuntu3.7USN-6540-1

Fixed in:5.64-0ubuntu1.1USN-6540-1

Fixed in:5.66-0ubuntu1.1USN-6540-1

Fixed in:5.68-0ubuntu1.1USN-6540-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

7.88%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch1

git.kernel.org

Third-Party Advisory6

Mailing List2

Release Notes1

changelogs.ubuntu.com

Other references5

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	Fix

Embed a live status badge for CVE-2023-45866

Markdown

[![CVE-2023-45866](https://tridentstack.com/cve/badge/CVE-2023-45866.svg)](https://tridentstack.com/cve/CVE-2023-45866)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-45866"><img src="https://tridentstack.com/cve/badge/CVE-2023-45866.svg" alt="CVE-2023-45866"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.