What is CVE-2023-4258?

CVE-2023-4258 is a high-severity vulnerability in Zephyrproject Zephyr, classified under CWE-684. CVSS score: 8.6/10. Published 2023-09-25.

How severe is CVE-2023-4258?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Zephyrproject Zephyr

CVE-2023-4258

In Bluetooth mesh implementation If provisionee has a public key that is sent OOB then during provisioning it can be sent back and will be accepted by provisionee.

Published 2023-09-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.8th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001

Affected products

Zephyrproject Zephyr
Zephyrproject-Rtos Zephyr — versions 1.14

Weakness classification (CWE)

CWE-684

References

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-m34c-cp63-rwh7 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2023-4258?: CVE-2023-4258 is a high-severity vulnerability in Zephyrproject Zephyr, classified under CWE-684. CVSS score: 8.6/10. Published 2023-09-25.
How severe is CVE-2023-4258?: High severity. CVSS v3 base score is 8.6 out of 10.