#VU53125 Use-after-free in Adobe Acrobat and Adobe Reader - CVE-2021-28550
Published: May 11, 2021
Vulnerability identifier: #VU53125
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2021-28550
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Adobe Acrobat
Adobe Reader
Adobe Acrobat
Adobe Reader
Software vendor:
Adobe
Adobe
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing PDF content. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.