CVE-2026-80186
bluez: A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack
CVE-2026-80186 is fixed in 25 products on 1 platform, first by bluetooth 5.48-0ubuntu3.9+esm3, released September 6, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.6
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0050
43rd percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bluetooth · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | bluetooth 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| bluetooth · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | bluetooth 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| bluetooth · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluetooth 5.64-0ubuntu1.5 | Oct 12, 2026 |
| bluetooth · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluetooth 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluetooth · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluetooth 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez · Debian 14 | 5.87-3 | DEBIAN-CVE-2026-80186 | Sep 12, 2026 |
| bluez · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | bluez 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| bluez · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | bluez 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| bluez · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluez 5.64-0ubuntu1.5 | Oct 12, 2026 |
| bluez · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-cups · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | bluez-cups 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| bluez-cups · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | bluez-cups 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| bluez-cups · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluez-cups 5.64-0ubuntu1.5 | Oct 12, 2026 |
| bluez-cups · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-cups 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-cups · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-cups 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-cups · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-cups-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-debugsource · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-deprecated · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-deprecated-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-hcidump · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | bluez-hcidump 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| bluez-hcidump · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | bluez-hcidump 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| bluez-hcidump · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluez-hcidump 5.64-0ubuntu1.5 | Oct 12, 2026 |
| bluez-hcidump · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-hcidump 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-hcidump · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-hcidump 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-hid2hci · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-hid2hci-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-libs · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-libs-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-libs-devel · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-libs-devel-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-mesh · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-mesh-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-meshd · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluez-meshd 5.64-0ubuntu1.5 | Oct 12, 2026 |
| bluez-meshd · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-meshd 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-meshd · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-meshd 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-obexd · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | bluez-obexd 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| bluez-obexd · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | bluez-obexd 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| bluez-obexd · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluez-obexd 5.64-0ubuntu1.5 | Oct 12, 2026 |
| bluez-obexd · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-obexd 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-obexd · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-obexd 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-obexd · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-obexd-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.6 | ALAS2023-2026-2146 | Sep 14, 2026 |
| bluez-source · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-source 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-source · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-source 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-test-scripts · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-test-scripts 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-test-scripts · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-test-scripts 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-test-tools · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | bluez-test-tools 5.72-0ubuntu5.7 | Oct 12, 2026 |
| bluez-test-tools · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | bluez-test-tools 5.85-4ubuntu0.3 | Sep 15, 2026 |
| bluez-tests · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | bluez-tests 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| bluez-tests · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | bluez-tests 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| bluez-tests · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | bluez-tests 5.64-0ubuntu1.5 | Oct 12, 2026 |
| libbluetooth3 · Ubuntu 18.04.6 LTS (bionic) | 5.48-0ubuntu3.9+esm3 | libbluetooth3 5.48-0ubuntu3.9+esm3 | Sep 6, 2026 |
| libbluetooth3 · Ubuntu 20.04 LTS (focal) | 5.53-0ubuntu3.9+esm1 | libbluetooth3 5.53-0ubuntu3.9+esm1 | Oct 12, 2026 |
| libbluetooth3 · Ubuntu 22.04.1 LTS (jammy) | 5.64-0ubuntu1.5 | libbluetooth3 5.64-0ubuntu1.5 | Oct 12, 2026 |
| libbluetooth3 · Ubuntu 24.04.5 LTS (noble) | 5.72-0ubuntu5.7 | libbluetooth3 5.72-0ubuntu5.7 | Oct 12, 2026 |
| libbluetooth3 · Ubuntu 26.04.1 LTS (resolute) | 5.85-4ubuntu0.3 | libbluetooth3 5.85-4ubuntu0.3 | Sep 15, 2026 |
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