GoAnywhere MFT - RCE (CVE-2023-0669)

CVE-2023-0669 is a pre-authentication command injection vulnerability in Fortra GoAnywhere MFT, stemming from unsafe deserialization in the License Response Servlet. This flaw allows remote attackers to execute arbitrary commands on the affected system before authentication, potentially leading to full system compromise.

CrowdSec has been tracking this vulnerability and its exploits since 25th of September 2025.

CrowdSec network data shows that most actors exploiting CVE-2023-0669 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2023-0669. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.

Attackers exploit the /goanywhere/lic/accept endpoint by sending specially crafted POST requests to trigger remote code execution via unsafe deserialization in Fortra GoAnywhere MFT.