Public proof of conceptFix available

CVE-2023-45866

Q: Is CVE-2023-45866 actively exploited?

Active exploitation of CVE-2023-45866 has not been confirmed. Its EPSS score was 7.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-45866?

CVE-2023-45866 has a CVSS v3 base score of 6.3 (MEDIUM severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

A public proof of concept exists; no exploitation attested.

Published2023-12-08
WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2023-12-0806:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-45866?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-45866?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Google androidversion to verify

Branch	Affected	Fixed in	Source
4.2	= 4.2.2	no fix published	NVD
6.0	= 6.0.1	no fix published	NVD
10.0	= 10.0	no fix published	NVD
11.0	= 11.0	no fix published	NVD
13.0	= 13.0	no fix published	NVD
14.0	= 14.0	no fix published	NVD

Canonical ubuntu linux

Branch	Affected	Fixed in	Source
18.4	= 18.04	no fix published	NVD
20.4	= 20.04	no fix published	NVD
22.4	= 22.04	no fix published	NVD
23.10	= 23.10	no fix published	NVD

Apple macosversion to verify

Branch	Affected	Fixed in	Source
14.x	≥ 14.0, < 14.2	14.2	NVD
12.6	= 12.6.7	no fix published	NVD
13.3	= 13.3.3	no fix published	NVD

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

bluezAlmaLinux:9all versions · fixed in 5.72-2.el9and 4 other packages
bluezAlmaLinux:8all versions · fixed in 5.63-3.el8_10.alma.1and 5 other packages

Full record on NVD

Fix

Advisories and patches

changelogs.ubuntu.comRelease Notes
git.kernel.orgPatch

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 12 repositories, unverifiedpentestfunctions/BlueDuckyEason-zz/BluetoothDuckyjjjjjjjj987/cve-2023-45866-pycisnarfu/BluepopAvishekDhakal/CVE-2023-45866_EXPLOITS

Sources

NVDCVSS 3.16.3read 2026-10-23
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score7.9 %2026-10-23
PoC-in-GitHubproof of concept12read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published: 2023-12-08
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-45866?

Is CVE-2023-45866 actively exploited?

Active exploitation of CVE-2023-45866 has not been confirmed. Its EPSS score was 7.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

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

CVE-2023-45866 has a CVSS v3 base score of 6.3 (MEDIUM severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

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