What is CVE-2026-2411?

CVE-2026-2411 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-08-01.

How severe is CVE-2026-2411?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Zephyrproject Zephyr

CVE-2026-2411

Zephyr's Bluetooth host declares a GATT characteristic as two consecutive attributes: a Characteristic Declaration whose permission is hard-coded to BT_GATT_PERM_READ, and a Characteristic Value attribute that carries the application-speci…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Zephyrproject Zephyr — versions 2.6.0

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

vulnerabilities@zephyrproject.org (patch)
vulnerabilities@zephyrproject.org

Frequently asked questions

What is CVE-2026-2411?: CVE-2026-2411 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-08-01.
How severe is CVE-2026-2411?: Medium severity. CVSS v3 base score is 6.5 out of 10.