OSPF Protocol Vulnerability in SCALANCE Network Devices by Siemens

CVE-2021-37182

What is CVE-2021-37182?

A vulnerability exists in multiple SCALANCE network devices from Siemens where the OSPF protocol implementation does not properly validate the checksum and length fields of OSPF LS Update messages. This flaw enables an unauthenticated remote attacker to disrupt network services by sending specially crafted OSPF packets. For successful exploitation, OSPF must be enabled on the target device, potentially leading to significant network interruptions.

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