CVE-2023-45866: bluez · CVE-2023-45866 is a
Affects bluezSource CVE Database V5
Mentioned vulnerabilities
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated High by the CNA (mitre) · No CVSS score from NVD or the CNA
- EPSS
- 7.8% chance of exploitation in 30 days – higher than 94% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 8 Dec 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntuubuntu/bluezpkg:deb/ubuntu/bluezOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should check the vendor advisory or distribution updates for BlueZ 5.64-0ubuntu1 or later versions for official fixes. Some mitigations from CVE-2020-0556 may already reduce risk. Until a fix is confirmed, restricting Bluetooth device pairing to trusted devices and monitoring for unusual HID activity is advisable.
Description
CVE-2023-45866 is a vulnerability in the Bluetooth HID Hosts component of BlueZ, specifically affecting version 5.64-0ubuntu1 as shipped in Ubuntu 22.04 LTS. It allows an unauthenticated Bluetooth HID Peripheral device to initiate and establish an encrypted connection and send HID keyboard reports without user interaction or authorization on the Central role. Some mitigations from CVE-2020-0556 may partially address this issue.
References
- bluetooth.com (opens in a new tab)
- changelogs.ubuntu.com/changelogs/pool/main/b/bluez/bluez_5.64-0ubuntu1/changelog (opens in a new tab)
- github.com/skysafe/reblog/tree/main/cve-2023-45866 (opens in a new tab)
- git.kernel.org/pub/scm/bluetooth/bluez.git/commit/profiles/input?id=25a471a83e02e1effb15d5a488b3f0085eaeb675 (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D2N2P5LMP3V7IJONALV2KOFL4NUU23CJ/ (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77YQQS5FXPYE6WBBZO3REFIRAUJHERFA/ (opens in a new tab)
- support.apple.com/kb/HT214036 (opens in a new tab)
- support.apple.com/kb/HT214035 (opens in a new tab)
- seclists.org/fulldisclosure/2023/Dec/9 (opens in a new tab)
- seclists.org/fulldisclosure/2023/Dec/7 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2023/12/msg00011.html (opens in a new tab)
- debian.org/security/2023/dsa-5584 (opens in a new tab)
- security.gentoo.org/glsa/202401-03 (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/77YQQS5FXPYE6WBBZO3REFIRAUJHERFA/ (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2N2P5LMP3V7IJONALV2KOFL4NUU23CJ/ (opens in a new tab)