CVE-2023-4258: bt: mesh: vulnerability in provisioning protocol implementation on provisionee side

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-25 · updated 2026-06-17
Weakness: CWE-684

Description

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.

Affected products

zephyrproject zephyr: before 3.4.0 — fixed in 3.4.0

How to fix

Upgrade to a fixed version: zephyrproject zephyr 3.4.0. Check the vendor advisory for mitigations.

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-m34c-cp63-rwh7
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-m34c-cp63-rwh7

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