Unknown attackers used zero-day exploits to abuse a new FortiOS bug patched this month in attacks targeting government and large organizations that have led to OS and file corruption and data loss.

Fortinet says a critical FortiOS SSL VPN vulnerability that was patched last week "may have been exploited" in attacks impacting government, manufacturing, and critical infrastructure organizations.

In early March, a customer called in Fortinet's incident response team when multiple FortiGate security appliances stopped working, entering an error mode after the ...