CVE-2023-45866

MEDIUMNVD 6.38.8▲
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-12-08. NVD baseline CVSS 6.3; sources differ by 2.5.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 8%CVSS: 6.3Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
6.3
EG Score
8.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
94.1%
KEV
Not listed

Published

December 8, 2023

Last Modified

June 17, 2026

References (28)

Vendor Advisories for CVE-2023-45866(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibbluetooth3 (5.37-0ubuntu5.3+esm3) @ xenial2026-05-24ubuntu
redhatbluez-0:5.63-3.el8_102024-12-17redhat
redhatbluez-0:5.72-2.el92024-11-12redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:27 UTCEG score recompute
  3. 2026-07-22 23:14 UTCEG score recompute
  4. 2026-07-22 14:06 UTCEPSS rescore
  5. 2026-07-21 15:23 UTCEPSS rescore
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  14. 2026-07-15 16:56 UTCEPSS rescore
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  16. 2026-07-15 01:59 UTCEPSS rescore
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  18. 2026-07-15 01:55 UTCOSV refresh
  19. 2026-07-13 22:28 UTCEPSS rescore
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  21. 2026-07-13 06:11 UTCEPSS rescore
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  24. 2026-07-11 08:26 UTCEPSS rescore
  25. 2026-07-09 19:08 UTCEPSS rescore
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  1. 2026-07-08 15:13 UTCEPSS rescore
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  4. 2026-07-06 02:22 UTCEPSS rescore
  5. 2026-07-05 02:29 UTCEPSS rescore
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  8. 2026-07-02 16:59 UTCEPSS rescore
  9. 2026-07-01 15:05 UTCEPSS rescore
  10. 2026-06-30 23:21 UTCEPSS rescore
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  12. 2026-06-29 14:05 UTCEPSS rescore
  13. 2026-06-28 04:55 UTCEPSS rescore
  14. 2026-06-27 03:07 UTCEPSS rescore
  15. 2026-06-27 02:39 UTCOSV refresh
  16. 2026-06-25 13:48 UTCEPSS rescore
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  18. 2026-06-24 14:04 UTCEPSS rescore
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  20. 2026-06-23 21:31 UTCEPSS rescore
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  22. 2026-06-22 14:24 UTCEPSS rescore
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  24. 2026-06-21 14:55 UTCEPSS rescore
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  26. 2026-06-21 01:58 UTCEPSS rescore
  27. 2026-06-21 01:58 UTCEPSS rescore
  28. 2026-06-19 19:24 UTCEPSS rescore
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  30. 2026-06-18 17:51 UTCEPSS rescore
  31. 2026-06-17 17:51 UTCEPSS rescore
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  35. 2026-06-13 22:59 UTCEPSS rescore
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  37. 2026-06-12 23:11 UTCEPSS rescore
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  39. 2026-06-11 13:59 UTCEPSS rescore
  40. 2026-06-10 22:17 UTCEPSS rescore
  41. 2026-06-10 13:21 UTCEPSS rescore
  42. 2026-06-09 12:49 UTCOSV refresh
  43. 2026-06-08 14:16 UTCEPSS rescore
  44. 2026-06-08 14:16 UTCEPSS rescore
  45. 2026-06-07 15:24 UTCEPSS rescore
  46. 2026-06-07 15:23 UTCEPSS rescore
  47. 2026-06-06 13:46 UTCEPSS rescore
  48. 2026-06-06 13:46 UTCEPSS rescore
  49. 2026-06-05 22:46 UTCEPSS rescore
  50. 2026-06-05 22:46 UTCEPSS rescore
  51. 2026-06-05 06:09 UTCEPSS rescore
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  53. 2026-06-05 06:09 UTCEPSS rescore
  54. 2026-06-04 13:11 UTCEPSS rescore
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  56. 2026-06-04 13:11 UTCEPSS rescore
  57. 2026-06-02 20:12 UTCEPSS rescore
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  59. 2026-05-31 22:30 UTCEPSS rescore
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  61. 2026-05-31 00:15 UTCEPSS rescore
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  63. 2026-05-29 13:43 UTCEPSS rescore
  64. 2026-05-29 13:43 UTCEPSS rescore
  65. 2026-05-28 13:44 UTCEPSS rescore
  66. 2026-05-28 13:43 UTCEPSS rescore
  67. 2026-05-27 13:39 UTCEPSS rescore
  68. 2026-05-27 13:39 UTCEPSS rescore
  69. 2026-05-26 07:18 UTCEPSS rescore
  70. 2026-05-26 07:18 UTCEPSS rescore
  71. 2026-05-26 07:18 UTCEPSS rescore
  72. 2026-05-24 12:33 UTCEG score recompute
  73. 2026-05-24 12:33 UTCVendor advisory
  74. 2026-05-24 12:33 UTCGHSA enrichment
  75. 2026-05-24 05:27 UTCOSV refresh

Publicly available exploits

(4 references)

Working exploit code is in the public domain (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCDanyw24/blueXploit
    First seen Dec 15, 2024

    Exploit basado en vulnerabilidades criticas Bluetooth (CVE-2023-45866, CVE-2024-21306)

    Open source ↗
  • GitHub PoCAvishekDhakal/CVE-2023-45866_EXPLOITS
    First seen Sep 2, 2024

    Exploits Tested in Mi A2 Lite and Realme 2 pro

    Open source ↗
  • GitHub PoCpentestfunctions/BlueDucky
    First seen Jan 16, 2024

    🚨 CVE-2023-45866 - BlueDucky Implementation (Using DuckyScript) 🔓 Unauthenticated Peering Leading to Code Execution (Using HID Keyboard)

    Open source ↗
  • GitHub PoCEason-zz/BluetoothDucky
    First seen Jan 16, 2024

    CVE-2023-45866 - BluetoothDucky implementation (Using DuckyScript)

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-45866?
CVE-2023-45866 is a medium vulnerability published on December 8, 2023. 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…
When was CVE-2023-45866 disclosed?
CVE-2023-45866 was first published in the National Vulnerability Database on December 8, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-45866 actively exploited?
CVE-2023-45866 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-45866?
CVE-2023-45866 has a CVSS v3 base score of 6.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8.
How do I remediate CVE-2023-45866?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-45866, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2023-45866

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