CVE-2021-39842 HIGH

CVE-2021-39842: Adobe Acrobat Reader DC messageHandler.OnMessage Use-After-Free Vulnerability

Vendor Adobe
Product Acrobat Reader
Weakness CWE-416
Published September 29, 2021
Last update September 17, 2024
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Key dates

02Disclosure timeline

September 29, 2021 CVE published
September 17, 2024 Record updated