The South Korean CERT has reported in the wild exploitation of a remote code execution vulnerability in a popular ActiveX component. The group behind this attack is called Andariel Group. the group is tied to activity of a known North Korean adversary Lazarus Group.
Vulnerable component: Samsung SDS Acube ActiveX Control
CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C
CWE-ID: CWE-20 - Improper Input Validation
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation within the AcubeFileCtrl.ocx ActiveX component. A remote attacker can trick the victim into visiting a specially crafted web page and execute arbitrary code on the target system.
Note: this vulnerability is being actively exploited in the wild.