system
Describe <CVE-2021-21949>.
user
What is <CVE-2021-21949>?
assistant
An improper array index validation vulnerability exists in the JPEG-JFIF Scan header parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to an out-of-bounds write and potential code exectuion. An attacker can provide a malicious file to trigger this vulnerability..