#VU54696 Use-after-free in Adobe Acrobat and Adobe Reader

Published: 2021-07-13

Vulnerability identifier: #VU54696

Vulnerability risk: High


CVE-ID: CVE-2021-28635


Exploitation vector: Network

Exploit availability:

Vulnerable software:
Adobe Acrobat
Client/Desktop applications / Office applications
Adobe Reader
Client/Desktop applications / Office applications

Vendor: Adobe


The vulnerability allows a remote attacker to compromise the affected system

The vulnerability exists due to a boundary condition when processing PDF files. A remote attacker can trick the victim to open a specially crafted PDF document, trigger a use-after-free error and execute arbitrary code on the system.

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 21.001.20135 - 21.005.20148, 20.001.30020 - 20.013.20074, 17.008.30051 - 17.011.30197

Adobe Reader: 2020.001.30020 - 2020.013.20074, 2017.011.30156 - 2017.011.30197

Fixed software versions


External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

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