CVE-2019-16747: Matrixssl

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

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.

Affected products

• Matrixssl Matrixssl: before 4.2.2 (fixed in 4.2.2)

Published 2020-12-30. Last modified 2026-06-17.