CVE catalog

CVE-2026-19774

Severity: High · CVSS 8CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: Aug 18, 2026, 3:17:12 PM UTC
Updated: Sep 15, 2026, 7:17:17 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.27% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	bluez	sid	`5.87-5`	fixed
Debian	bluez	forky	`5.87-5`	fixed
Debian	bluez	trixie	`5.82-1.1`	vulnerable
Debian	bluez	bookworm	`5.66-1+deb12u2`	vulnerable
Debian	bluez	bookworm-security	`5.66-1+deb12u1`	vulnerable
Ubuntu	bluez	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluetooth	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-cups	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-hcidump	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-meshd	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-obexd	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-source	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-test-scripts	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	bluez-test-tools	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	libbluetooth-dev	noble	`5.72-0ubuntu5.7`	fixed
Ubuntu	libbluetooth3	noble	`5.72-0ubuntu5.7`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	bluez	source	sid	`5.87-1`	not yet assigned	Not reported	Not reported
Debian	bluez	source	forky	`5.87-1`	not yet assigned	Not reported	Not reported
Debian	bluez	source	trixie	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	bluez	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported
Ubuntu	bluez	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluetooth	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-cups	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-hcidump	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-meshd	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-obexd	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-source	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-test-scripts	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	bluez-test-tools	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	libbluetooth-dev	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported
Ubuntu	libbluetooth3	deb	noble	`5.72-0ubuntu5.7`	Not reported	Not reported	Not reported

Notes

[trixie] bluez: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[bluetooth]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · all · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · all · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · all · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · all · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez]Affected
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-cups]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-hcidump]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-meshd]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-obexd]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-source]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · all · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · all · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · all · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · all · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-test-scripts]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · all · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · all · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · all · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · all · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[bluez-test-tools]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[libbluetooth3]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
[libbluetooth-dev]Affected
Source package: [bluez]
Details (4)
- 5.66-1+deb12u2 · amd64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u2 · arm64 · bookworm
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · amd64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12
- 5.66-1+deb12u1 · arm64 · bookworm-security
  Affected
  nvd · bluez · debian · bookworm; nvd · bluez · debian · 12

[Debian 13 (Trixie)]

[bluetooth]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · all · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · all · trixie
  Affected
  nvd · bluez · debian · 13
[bluez]Affected
Details (2)
- 5.82-1.1 · amd64 · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · arm64 · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-cups]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · amd64 · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · arm64 · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-hcidump]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · amd64 · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · arm64 · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-meshd]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · amd64 · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · arm64 · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-obexd]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · amd64 · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · arm64 · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-source]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · all · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · all · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-test-scripts]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · all · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · all · trixie
  Affected
  nvd · bluez · debian · 13
[bluez-test-tools]Affected
Source package: [bluez]
Details (2)
- 5.82-1.1 · amd64 · trixie
  Affected
  nvd · bluez · debian · 13
- 5.82-1.1 · arm64 · trixie
  Affected
  nvd · bluez · debian · 13

Next results

Observed: Oct 23, 2026, 9:38:44 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [Ubuntu Security Notices (USN)]