Is CVE-2019-14431 actively exploited?

No active exploitation of CVE-2019-14431 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-14431 be exploited remotely?

Yes. CVE-2019-14431 is exploitable remotely over the network (CVSS attack vector: Network).

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

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

HOME VULNERABILITIESCVE-2019-14431

CRITICAL

CVE-2019-14431

CWE-755Published: July 29, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-14431 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.