What is CVE-2023-5779?

CVE-2023-5779 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2024-02-18.

How severe is CVE-2023-5779?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Buffer overflow in Zephyrproject Zephyr

CVE-2023-5779

can: out of bounds in remove_rx_filter function

Vulnerability class: Buffer Overflow

Published 2024-02-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (35.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7cmj-963q-jj47 (Exploit, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-5779?: CVE-2023-5779 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Out-of-bounds Write. CVSS score: 4.4/10. Published 2024-02-18.
How severe is CVE-2023-5779?: Medium severity. CVSS v3 base score is 4.4 out of 10.