Multiple stack-based buffer overflow vulnerabilities were found in Honeywell Experion PKS all versions prior to R400.6, all versions prior to R410.6, and all versions prior to R430.2 modules that could lead to possible remote code execution, dynamic memory corruption, or denial of service. Honeywell strongly encourages and recommends all customers running unsupported versions of EKPS prior to R400 to upgrade to a supported version.