CVE-2021-21002 – Denial of Service in Phoenix Contact FL COMSERVER UNI products

https://notcve.org/view.php?id=CVE-2021-21002

In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service. En Phoenix Contact FL COMSERVER UNI en versiones anteriores a 2.40, una respuesta de excepción Modbus no válida puede conllevar a una denegación de servicio temporal • https://cert.vde.com/en-us/advisories/vde-2021-022 • CWE-772: Missing Release of Resource after Effective Lifetime •