CVE-2021-39826: Adobe Digital Editions Command Execution Vulnerability

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-27 · updated 2026-06-17
Weakness: CWE-78

Description

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: through 4.5.11.187646

References

https://helpx.adobe.com/security/products/Digital-Editions/apsb21-80.html
https://helpx.adobe.com/security/products/Digital-Editions/apsb21-80.html

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