CVE-2021-39854: Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Service
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-39854?
CVE-2021-39854 has a severity rating that allows for potential application denial-of-service attacks.
How do I fix CVE-2021-39854?
To fix CVE-2021-39854, users should update to the latest version of Adobe Acrobat Reader DC or Adobe Acrobat.
What versions of Adobe products are affected by CVE-2021-39854?
CVE-2021-39854 affects Adobe Acrobat Reader DC versions prior to 21.005.20060, 2020.004.30006, and 2017.011.30199.
Can an attacker exploit CVE-2021-39854 remotely?
An unauthenticated attacker can exploit CVE-2021-39854 to achieve application denial-of-service.
Is there a workaround for CVE-2021-39854?
No specific workaround for CVE-2021-39854 is provided; updating the software is recommended.