CVE-2021-39826 Adobe Digital Editions Command Execution Vulnerability

High 8.6 Published Updated

An authenticated attacker can execute arbitrary commands by tricking a user into opening a maliciously crafted .epub file in Adobe Digital Editions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-39826?

CVE-2021-39826 is a high-severity command injection vulnerability in Adobe Digital Editions, published on 27 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-78

Which versions are affected by CVE-2021-39826?

It affects 1 product.

Products include Adobe Digital Editions.

How do I fix CVE-2021-39826?

No fix has been published for CVE-2021-39826 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-39826 being exploited?

There is no known exploitation of CVE-2021-39826 in the wild and no public exploit code.

All Adobe Digital Editions vulnerabilities

Sources

Also known as GHSA-42gw-xghc-5vpq.

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