What is CVE-2024-6259?

CVE-2024-6259 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Heap-based Buffer Overflow. CVSS score: 7.6/10. Published 2024-09-13.

How severe is CVE-2024-6259?

High severity. CVSS v3 base score is 7.6 out of 10.

Buffer overflow in Zephyrproject Zephyr

CVE-2024-6259

BT: HCI: adv_ext_report Improper discarding in adv_ext_report

Vulnerability class: Buffer Overflow

Published 2024-09-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

References

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p5j7-v26w-wmcp (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2024-6259?: CVE-2024-6259 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Heap-based Buffer Overflow. CVSS score: 7.6/10. Published 2024-09-13.
How severe is CVE-2024-6259?: High severity. CVSS v3 base score is 7.6 out of 10.