CVE-2026-80186
Fixed in a distro release EPSS <1%CVSS 7.6
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.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux 2023 | bluez | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-cups | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-deprecated | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-hid2hci | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-libs | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-libs-devel | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-mesh | 5.62-2.amzn2023.0.6 |
| Amazon Linux 2023 | bluez-obexd | 5.62-2.amzn2023.0.6 |
| Debian 12 | bluez | no fix |
| Debian 13 | bluez | no fix |
| Debian 14 | bluez | 5.87-3 |
| Ubuntu 22.04 LTS | bluez | 5.64-0ubuntu1.5 |
| Ubuntu 24.04 LTS | bluez | 5.72-0ubuntu5.7 |
| Ubuntu 26.04 LTS | bluez | 5.85-4ubuntu0.3 |
| Ubuntu 26.10 | bluez | no fix |
| Ubuntu Pro 16.04 LTS | bluez | 5.37-0ubuntu5.3+esm6 |
| Ubuntu Pro 18.04 LTS | bluez | 5.48-0ubuntu3.9+esm3 |
| Ubuntu Pro 20.04 LTS | bluez | 5.53-0ubuntu3.9+esm1 |