#VU57303 Out-of-bounds write in Adobe Reader and Adobe Acrobat - CVE-2021-40731
Published: October 12, 2021 / Updated: October 14, 2021
Vulnerability identifier: #VU57303
Vulnerability risk: High
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:U/U:Amber
CVE-ID: CVE-2021-40731
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Adobe Reader
Adobe Acrobat
Adobe Reader
Adobe Acrobat
Software vendor:
Adobe
Adobe
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing JPG2000 images inside a PDF file. A remote attacker can create a specially crafted PDF file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.