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.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2023-0669 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2023-0669 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2023-0669 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

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.