CISA has published an advisory on a classic buffer overflow vulnerability in Siemens SCALANCE and RUGGEDCOM. For RUGGEDCOM RM1224, all versions prior to 6.3 are affected. For SCALANCE M-800 / S615, all versions prior to 6.3 are affected. Successful exploitation of this vulnerability could allow an attacker to gain unauthenticated access to a device and cause a buffer overflow to execute custom code. Siemens recommends applying the updates available for each of the products. CISA also recommends a series of measures to mitigate the vulnerability. Read the advisory at CISA.