Unauthenticated OLT Access Lets Attackers Hijack ISP Networks
Research by Quarkslab shows that unauthenticated access to GPON Optical Line Terminals (OLTs) can let attackers hijack ISP networks. By exploiting exposed OLT interfaces, an attacker can pivot to the cloud‑based fleet manager and compromise the entire infrastructure. The findings highlight a critical security gap in telecom equipment used for FTTH services.