UBUNTU-CVE-2026-19774

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Source
https://ubuntu.com/security/CVE-2026-19774
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19774.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-19774
Upstream
Downstream
Related
Published
2026-09-15T19:17:00Z
Modified
2026-10-09T19:30:42Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:20.04:LTS / bluez

Package

Name
bluez
Purl
pkg:deb/ubuntu/bluez?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.53-0ubuntu3.9+esm1

Affected versions

5.*
5.50-0ubuntu4
5.51-0ubuntu1
5.51-0ubuntu2
5.52-0ubuntu1
5.52-0ubuntu2
5.53-0ubuntu1
5.53-0ubuntu2
5.53-0ubuntu3
5.53-0ubuntu3.1
5.53-0ubuntu3.2
5.53-0ubuntu3.3
5.53-0ubuntu3.4
5.53-0ubuntu3.5
5.53-0ubuntu3.6
5.53-0ubuntu3.7
5.53-0ubuntu3.8
5.53-0ubuntu3.9

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.53-0ubuntu3.9+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19774.json"

Ubuntu:22.04:LTS / bluez

Package

Name
bluez
Purl
pkg:deb/ubuntu/bluez?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.64-0ubuntu1.5

Affected versions

5.*
5.60-0ubuntu2
5.62-0ubuntu1
5.62-0ubuntu2
5.63-0ubuntu1
5.63-0ubuntu2
5.64-0ubuntu1
5.64-0ubuntu1.1
5.64-0ubuntu1.3
5.64-0ubuntu1.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.64-0ubuntu1.5"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.64-0ubuntu1.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19774.json"

Ubuntu:24.04:LTS / bluez

Package

Name
bluez
Purl
pkg:deb/ubuntu/bluez?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.72-0ubuntu5.7

Affected versions

5.*
5.68-0ubuntu1
5.70-0ubuntu1
5.70-0ubuntu2
5.70-0ubuntu3
5.71-0ubuntu3
5.71-1ubuntu2
5.71-1ubuntu3
5.72-0ubuntu1
5.72-0ubuntu3
5.72-0ubuntu4
5.72-0ubuntu5
5.72-0ubuntu5.1
5.72-0ubuntu5.3
5.72-0ubuntu5.4
5.72-0ubuntu5.5
5.72-0ubuntu5.6

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-source",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-test-scripts",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "bluez-test-tools",
            "binary_version": "5.72-0ubuntu5.7"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.72-0ubuntu5.7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19774.json"

Ubuntu:26.04:LTS / bluez

Package

Name
bluez
Purl
pkg:deb/ubuntu/bluez?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.85-4ubuntu0.3

Affected versions

5.*
5.83-1~exp1
5.84-1
5.85-1
5.85-2
5.85-3
5.85-4
5.85-4ubuntu0.1
5.85-4ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-source",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-test-scripts",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "bluez-test-tools",
            "binary_version": "5.85-4ubuntu0.3"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.85-4ubuntu0.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19774.json"