Cleo File Transfer Vulnerability Under Exploitation – Patch Pending, Mitigation Urged

Users of Cleo-managed file transfer software are being urged to ensure that their instances are not exposed to the internet following reports of mass exploitation of a vulnerability affecting fully patched systems.
Cybersecurity company Huntress said it discovered evidence of threat actors exploiting the issue en masse on December 3, 2024. The vulnerability, which impacts Cleo’s LexiCom,