What is CVE-2020-10064?

CVE-2020-10064 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Stack-based Buffer Overflow. CVSS score: 8.3/10. Published 2021-05-25.

How severe is CVE-2020-10064?

High severity. CVSS v3 base score is 8.3 out of 10.

Buffer overflow in Zephyrproject Zephyr

CVE-2020-10064

Improper Input Frame Validation in ieee802154 Processing. Zephyr versions >= v1.14.2, >= v2.2.0 contain Stack-based Buffer Overflow (CWE-121), Heap-based Buffer Overflow (CWE-122). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3gvq-h42f-v3c7

Vulnerability class: Buffer Overflow

Published 2021-05-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.008 (55.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Zephyrproject Zephyr
Zephyrproject-Rtos Zephyr — versions v1.14.2, v2.2.0

Weakness classification (CWE)

References

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3gvq-h42f-v3c7 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-10064?: CVE-2020-10064 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Stack-based Buffer Overflow. CVSS score: 8.3/10. Published 2021-05-25.
How severe is CVE-2020-10064?: High severity. CVSS v3 base score is 8.3 out of 10.