# CVE-2023-0397

## Summary

- **CVE ID:** CVE-2023-0397
- **Severity:** CRITICAL
- **CVSS Score:** 9.6 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H)
- **CWE:** CWE-703
- **Published:** Jan 19, 2023
- **Last Modified:** Mar 13, 2026

## Description

A malicious / defect bluetooth controller can cause a Denial of Service due to unchecked input in le_read_buffer_size_complete.

## Affected Products

- zephyrproject-rtos — zephyr (unspecified)

## References

- [CNA](https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-wc2h-h868-q7hj)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.09%
- **EPSS Percentile:** 25.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._