CVE-2026-19774
BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-19774 is fixed in 25 products on 1 platform, first by bluetooth 5.85-4ubuntu0.3, released September 15, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.1
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0027
18th percentile
BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29429.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| 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 | 5.87-1 | DEBIAN-CVE-2026-19774 | Sep 17, 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.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 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.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-cups-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-debugsource · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-deprecated · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-deprecated-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 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.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-hid2hci-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-libs · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-libs-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-libs-devel · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-libs-devel-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-mesh · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-mesh-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 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 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.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 2026 |
| bluez-obexd-debuginfo · amzn 2023 | 5.62-2.amzn2023.0.7 | ALAS2023-2026-3141 | Sep 28, 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 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 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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