Siemens Nucleus RTOS-based APOGEE and TALON Products Improper Handling of Inconsistent Structural Elements (CVE-2021-31890)

A vulnerability has been identified in APOGEE MBC PPC BACnet All versions, APOGEE MBC PPC P2 Ethernet All versions, APOGEE MEC PPC BACnet All versions, APOGEE MEC PPC P2 Ethernet All versions, APOGEE PXC Compact BACnet All versions = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and = V2.3 and...

CVE-2021-31890

CVE-2021-31890 stems from an unchecked TCP payload length in Siemens Nucleus NET stack used across multiple Siemens products (e.g., Capital Embedded AR Classic, PLUSCONTROL, SIMOTICS CONNECT 400, etc.). The issue enables information leaks and Denial-of-Service conditions depending on network buff...