CRITICAL

CVE-2019-14431

CVSS v3

9.8

CRITICAL

EPSS Score

3.6 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2019-14431 yet.

Full record on NVD

Description

In MatrixSSL 3.8.3 Open through 4.2.1 Open, the DTLS server mishandles incoming network messages leading to a heap-based buffer overflow of up to 256 bytes and possible Remote Code Execution in parseSSLHandshake in sslDecode.c. During processing of a crafted packet, the server mishandles the fragment length value provided in the DTLS message.

Technical details

Published: 2019-07-29

Frequently asked questions

What is CVE-2019-14431?

Is CVE-2019-14431 actively exploited?

Active exploitation of CVE-2019-14431 has not been confirmed. Its EPSS score was 3.6% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-14431?

CVE-2019-14431 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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