CVE-2021-26605: Unidocs Ezpdfreader

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.

Affected products

• Unidocs Ezpdfreader: from 2.0, up to and including 3.0

Published 2021-08-05. Last modified 2026-06-17.