---
id: CVE-2026-80185
title: >-
  Bluez: sdp-xml: bluez 5.86: unprivileged-local and adjacent-le-peer leads to
  arbitrary code execution as root
summary: >-
  BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash
  bluetoothd (local DoS): a crafted nested ServiceRecord can corrupt the SDP XML
  parser stack so scalar union data is treated as a sequence pointer, allowing a
  loc…
severity: medium
cvss: 5.7
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-843
vendor: Red Hat
product: bluez
affected:
  - bluez (all versions)
  - bluez
  - bluez (all versions)
  - bluez (all versions)
  - bluez (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-26T14:36:37.542760Z'
published: '2026-08-25'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T11:54:41.199Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80185'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80185'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2524139'
    label: RHBZ#2524139
tags:
  - cve.org
epss: 0.00292
epssPercentile: 0.20308
ingestedAt: '2026-10-16T12:05:46.476Z'
---

## Overview

BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a sequence pointer, allowing a local caller to crash bluetoothd.

## Affected

- `bluez (all versions)`
- `bluez`
- `bluez (all versions)`
- `bluez (all versions)`
- `bluez (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

Until a fix is available, restrict untrusted local access to the org.bluez.ProfileManager1.RegisterProfile D-Bus method, or more broadly to the org.bluez name on the system bus, for example via a D-Bus system bus policy or polkit rule, so that untrusted callers cannot submit arbitrary ServiceRecord XML. Disabling the Bluetooth service on systems where it is not required also reduces exposure.