CVE-2026-80186

EUVD-2026-66133
A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code execution.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.6 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 40.96%
Debian logo
Debian Releases
Debian Product
Codename
bluez
bookworm
postponed
bookworm (security)
vulnerable
forky
5.87-4
fixed
sid
5.87-5
fixed
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
bluez
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
xenial
needs-triage
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
bluez
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-cups
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-cups-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-debugsource
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-deprecated
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-deprecated-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-hid2hci
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-hid2hci-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-libs
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-libs-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-libs-devel
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-libs-devel-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-mesh
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-mesh-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-obexd
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
bluez-obexd-debuginfo
Amazon Linux 2023
0:5.62-2.amzn2023.0.6
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://access.redhat.com/security/cve/CVE-2026-80186
https://bugzilla.redhat.com/show_bug.cgi?id=2524132
https://github.com/bluez/bluez/security/advisories/GHSA-68h6-5qgp-3975