This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-80186 →

DEBIAN-CVE-2026-80186

A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote user within Bluetooth radio range can send a...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 bluez

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 bluez

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 bluez

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.87-3"}]}]

References

advisory security-tracker.debian.org