CVE-2019-16747
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.80% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- matrixssl/matrixssl
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.