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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 c

NXP MQX
CVSS
6.5Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)1.19%Chance of exploitation activity in the next 30 days, higher than 67% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5.0 ClassicFixed versionCVE List
Published8 Oct 2026Updated 15 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 1

  • MQXaffected: all versions before 5.0 ClassicCVE List

References 1