Siemens TCP/IP Stack Vulnerabilities-AMNESIA:33 in SENTRON PAC / 3VA Devices (Update C)
The TCP/IP stack (uIP) in affected devices is vulnerable to out-of-bounds read when calculating the checksum for IP packets. (FSCT-2020-0009)

An attacker located in the same network could trigger a Denial-of-Service condition on the device by sending a specially crafted IP packet. The TCP/IP stack (uIP) in affected devices is vulnerable to out-of-bounds write when processing TCP packets with urgent pointer (URG) where the location of the TCP data payload is calculated improperly. (FSCT-2020-0018)

An attacker located in the same network could trigger a Denial-of-Service condition on the device by sending a specially crafted IP packet.