CVE-2019-16747

Name: CVE-2019-16747
Creator: NVD / NIST
Published: 2020-12-30T21:15:12.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.77%

Last modified Jun 17, 2026

CVE-2019-16747 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In MatrixSSL before 4.2.2 Open, the DTLS server can encounter an invalid pointer free (leading to memory corruption and a daemon crash) via a crafted incoming network message, a different vulnerability than CVE-2019-14431.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

In MatrixSSL before 4.2.2 Open, the DTLS server can encounter an invalid pointer free (leading to memory corruption and a daemon crash) via a crafted incoming network message, a different vulnerability than CVE-2019-14431.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.77%

75.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Matrixssl	Matrixssl	< 4.2.2

References

https://github.com/matrixssl/matrixssl/blob/4-2-2-open/doc/CHANGES_v4.x.mdRelease Notes, Third Party Advisory
https://github.com/matrixssl/matrixssl/issues/33Exploit, Third Party Advisory
https://github.com/matrixssl/matrixssl/releases/tag/4-2-2-openThird Party Advisory
https://github.com/matrixssl/matrixssl/blob/4-2-2-open/doc/CHANGES_v4.x.mdRelease Notes, Third Party Advisory
https://github.com/matrixssl/matrixssl/issues/33Exploit, Third Party Advisory
https://github.com/matrixssl/matrixssl/releases/tag/4-2-2-openThird Party Advisory

Timeline

Published: Dec 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-16747?

How severe is CVE-2019-16747?

CVE-2019-16747 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2019-16747?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16747?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST