John Leyden, writing at El Reg, tells the tale of the latest ATM SNAFU. All based on CVE-2017-6968... Astonishing, indeed.

"To exploit the vulnerability, a criminal would need to pose as the control server, which is possible via ARP spoofing, or by simply connecting the ATM to a criminal-controlled network connection," said Georgy Zaytsev, a researcher with Positive Technologies. "During the process of generating the public key for traffic encryption, the rogue server can cause a buffer overflow on the ATM due to failure on the client side to limit the length of response parameters and send a command for remote code execution." - via John Leyden, at El Reg