GoAnywhere MFT - RCE (CVE-2025-10035)

CVE-2025-10035 is a critical deserialization vulnerability in Fortra's GoAnywhere MFT License Servlet that lets an unauthenticated attacker present a forged license response to force the server to deserialize attacker-controlled objects, potentially resulting in command injection and remote code execution.

CrowdSec has been tracking this vulnerability and its exploits since 24th of September 2025.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2025-10035 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. CrowdSec data also reveals a clear uptick in attacks involving CVE-2025-10035 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.

Attackers trigger the unlicensed activation flow (e.g., /goanywhere/license/Unlicensed.xhtml with GARequestAction=activate) to obtain a session-linked token/UUID and then POST a crafted bundle to the license accept endpoint (/goanywhere/lic/accept/<GUID>). The server deserializes that bundle, allowing attacker-controlled objects to execute on the server.