CVE-2020-14260: Hcltech Domino

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

HCL Domino is susceptible to a Buffer Overflow vulnerability in DXL due to improper validation of user input. A successful exploit could enable an attacker to crash Domino or execute attacker-controlled code on the server system.

Affected products

• Hcltech Domino: from 9.0.0, up to and including 9.0.1; from 10.0.0, up to and including 10.0.1; from 11.0.0, up to and including 11.0.1

Published 2020-12-02. Last modified 2026-06-17.