CVE-2019-10013: Axtls Project Axtls

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

The asn1_signature function in asn1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow that allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted certificate in the TLS certificate handshake message, because the result of get_asn1_length() is not checked for a minimum or maximum size.

Affected products

• Axtls Project Axtls: up to and including 2.1.5

Published 2019-12-03. Last modified 2026-06-17.