Buffer overflow in Nxp Mqx

CVE-2017-20283

NXP MQX Classic before 5.0 contains an out-of-bounds write vulnerability in the RTCS UDP recvfrom() implementation. Improper enforcement of the application-supplied receive buffer length may allow a crafted UDP packet to overflow the destination buffer, resulting in memory corruption, or denial of service.

Vulnerability class: Buffer Overflow

Published .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-20283?
CVE-2017-20283 is a medium-severity vulnerability in Nxp Mqx, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-10-08.
How severe is CVE-2017-20283?
Medium severity. CVSS v3 base score is 6.5 out of 10.