DEBIAN-CVE-2026-80186
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.
DEBIAN-CVE-2026-80186
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-80186
bluez
Source reference: /affected/0/package/name
- Affected versions
- 5.66-1
Source reference:
/affected/0/versions5.66-1+deb12u1Source reference:
/affected/0/versions5.66-1+deb12u2Source reference:
/affected/0/versions5.68-1Source reference:
/affected/0/versions5.68-2Source reference:
/affected/0/versions5.69-1Source reference:
/affected/0/versions5.70-1Source reference:
/affected/0/versions5.70-1.1Source reference:
/affected/0/versions5.70-1.1~exp0Source reference:
/affected/0/versions5.71-1Source reference:
/affected/0/versions5.73-1Source reference:
/affected/0/versions5.73-1.1Source reference:
/affected/0/versions5.77-1Source reference:
/affected/0/versions5.79-1Source reference:
/affected/0/versions5.79-2Source reference:
/affected/0/versions5.82-1Source reference:
/affected/0/versions5.82-1.1Source reference:
/affected/0/versions5.83-1Source reference:
/affected/0/versions5.83-1~exp1Source reference:
/affected/0/versions5.84-1Source reference:
/affected/0/versions5.85-1Source reference:
/affected/0/versions5.85-2Source reference:
/affected/0/versions5.85-3Source reference:
/affected/0/versions5.85-4Source reference:
/affected/0/versions5.87-1Source reference:
/affected/0/versions5.87-2Source reference:
/affected/0/versions5.87-3Source reference:
/affected/0/versions5.87-4Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
bluez
Source reference: /affected/1/package/name
- Affected versions
- 5.82-1.1
Source reference:
/affected/1/versions5.83-1Source reference:
/affected/1/versions5.83-1~exp1Source reference:
/affected/1/versions5.84-1Source reference:
/affected/1/versions5.85-1Source reference:
/affected/1/versions5.85-2Source reference:
/affected/1/versions5.85-3Source reference:
/affected/1/versions5.85-4Source reference:
/affected/1/versions5.87-1Source reference:
/affected/1/versions5.87-2Source reference:
/affected/1/versions5.87-3Source reference:
/affected/1/versions5.87-4Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
bluez
Source reference: /affected/2/package/name
- Affected versions
- 5.82-1.1
Source reference:
/affected/2/versions5.83-1Source reference:
/affected/2/versions5.83-1~exp1Source reference:
/affected/2/versions5.84-1Source reference:
/affected/2/versions5.85-1Source reference:
/affected/2/versions5.85-2Source reference:
/affected/2/versions5.85-3Source reference:
/affected/2/versions5.85-4Source reference:
/affected/2/versions5.87-1Source reference:
/affected/2/versions5.87-2Source reference:
/affected/2/versions - Fixed versions
- 5.87-3
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.66-1",
"5.66-1+deb12u1",
"5.66-1+deb12u2",
"5.68-1",
"5.68-2",
"5.69-1",
"5.70-1",
"5.70-1.1",
"5.70-1.1~exp0",
"5.71-1",
"5.73-1",
"5.73-1.1",
"5.77-1",
"5.79-1",
"5.79-2",
"5.82-1",
"5.82-1.1",
"5.83-1",
"5.83-1~exp1",
"5.84-1",
"5.85-1",
"5.85-2",
"5.85-3",
"5.85-4",
"5.87-1",
"5.87-2",
"5.87-3",
"5.87-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-80186.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"5.82-1.1",
"5.83-1",
"5.83-1~exp1",
"5.84-1",
"5.85-1",
"5.85-2",
"5.85-3",
"5.85-4",
"5.87-1",
"5.87-2",
"5.87-3",
"5.87-4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-80186.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.87-3"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"5.82-1.1",
"5.83-1",
"5.83-1~exp1",
"5.84-1",
"5.85-1",
"5.85-2",
"5.85-3",
"5.85-4",
"5.87-1",
"5.87-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-80186.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58208 · Revision 1
- Added to Heist Feed
- Publisher date