CVE-2021-39826: Adobe Digital Editions

High severity, CVSS 8.6. EPSS: 2.1% chance of exploitation in the next 30 days.

Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by an arbitrary command execution vulnerability. An authenticated attacker could leverage this vulnerability to execute arbitrary commands. User interaction is required to abuse this vulnerability in that a user must open a maliciously crafted .epub file.

Affected products

• Adobe Digital Editions: up to and including 4.5.11.187646

Published 2021-09-27. Last modified 2026-06-17.