UBUNTU-CVE-2026-80186

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Source

https://ubuntu.com/security/CVE-2026-80186

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-80186

Upstream

CVE-2026-80186

Published

2026-08-25T22:17:00Z

Modified

2026-09-02T19:36:34.719481472Z

Severity

7.6 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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.

References

Affected packages

Ubuntu:20.04:LTS

bluez

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

{
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.53-0ubuntu3.9"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.53-0ubuntu3.9"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.53-0ubuntu3.9"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.53-0ubuntu3.9"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.53-0ubuntu3.9"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.53-0ubuntu3.9"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.53-0ubuntu3.9"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json"

Ubuntu:22.04:LTS

bluez

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

{
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.64-0ubuntu1.4"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.64-0ubuntu1.4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json"

Ubuntu:24.04:LTS

bluez

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-source",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-test-scripts",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "bluez-test-tools",
            "binary_version": "5.72-0ubuntu5.5"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.72-0ubuntu5.5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json"

Ubuntu:26.04:LTS

bluez

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

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

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-source",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-test-scripts",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "bluez-test-tools",
            "binary_version": "5.85-4ubuntu0.1"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.85-4ubuntu0.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json"

Ubuntu:Pro:16.04:LTS

bluez

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.35-0ubuntu2

5.36-0ubuntu1

5.37-0ubuntu5

5.37-0ubuntu5.1

5.37-0ubuntu5.3

5.37-0ubuntu5.3+esm1

5.37-0ubuntu5.3+esm2

5.37-0ubuntu5.3+esm3

5.37-0ubuntu5.3+esm4

5.37-0ubuntu5.3+esm5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.37-0ubuntu5.3+esm5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json"

Ubuntu:Pro:18.04:LTS

bluez

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.46-0ubuntu3

5.46-0ubuntu4

5.48-0ubuntu3

5.48-0ubuntu3.1

5.48-0ubuntu3.2

5.48-0ubuntu3.3

5.48-0ubuntu3.4

5.48-0ubuntu3.5

5.48-0ubuntu3.6

5.48-0ubuntu3.7

5.48-0ubuntu3.8

5.48-0ubuntu3.9

5.48-0ubuntu3.9+esm1

5.48-0ubuntu3.9+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.48-0ubuntu3.9+esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-80186.json"