Vulnerability identifier: #VU56568

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39827

CWE-ID: CWE-276

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Digital Editions
Client/Desktop applications / Multimedia software

Vendor: Adobe

Description

The vulnerability allows a remote attacker to overwrite arbitrary files on the system.

The vulnerability exists due to incorrect default permissions for temporary files and folders that are set by the application. A remote attacker can trick the victim to open a specially crafted file and overwrite arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Digital Editions : 4.0 - 4.5.11.187646

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External links
http://helpx.adobe.com/security/products/Digital-Editions/apsb21-80.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.