CVE-2020-10068

Zephyr Bluetooth DLE duplicate requests vulnerability

5.1 Medium

In the Zephyr project Bluetooth subsystem, certain duplicate and back-to-back packets can cause incorrect behavior, resulting in a denial of service. This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions, and version 1.14.0 and later versions.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.50%Down 1.3 points since Apr 14, 2021

What each source reports

CVE List Score used 5.1

Zephyr Bluetooth DLE duplicate requests vulnerability

Record: CVE-2020-10068
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-20
Updated: 2026-11-02

EUVDEUVD-2020-2533 5.1

Record: EUVD-2020-2533
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vwfw-j95m-5r48 No score

In the Zephyr project Bluetooth subsystem, certain duplicate and back-to-back packets can cause...

Record: GHSA-vwfw-j95m-5r48
Updated: 2026-11-02

NVD 5.1

Record: CVE-2020-10068
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 3.3 LowAV:A/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-10068 is a medium vulnerability (CVSS 5.1) in Zephyrproject Zephyr, published June 5, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 42nd percentile. No source names a fixed version.