Buffer overflow in Zephyrproject Zephyr

CVE-2023-5139

Potential buffer overflow vulnerability at the following location in the Zephyr STM32 Crypto driver

Vulnerability class: Buffer Overflow

EPSS: 0.004 (34.9th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-5139?
CVE-2023-5139 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.4/10. Published 2023-10-26.
How severe is CVE-2023-5139?
Medium severity. CVSS v3 base score is 4.4 out of 10.
Is CVE-2023-5139 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.