Description
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 < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.19), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus Source Code (All versions), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). The DHCP client application assumes that the data supplied with the “Hostname” DHCP option is NULL terminated. In cases when global hostname variable is not defined, this may lead to Out-of-bound reads, writes, and Denial-of-service conditions. (FSMD-2021-0014)
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | APOGEE MBC (PPC) (BACnet) | All versions | — |
| Siemens | APOGEE MBC (PPC) (P2 Ethernet) | All versions | — |
| Siemens | APOGEE MEC (PPC) (BACnet) | All versions | — |
| Siemens | APOGEE MEC (PPC) (P2 Ethernet) | All versions | — |
| Siemens | APOGEE PXC Compact (BACnet) | All versions < V3.5.4 | — |
| Siemens | APOGEE PXC Compact (P2 Ethernet) | All versions < V2.8.19 | — |
| Siemens | APOGEE PXC Modular (BACnet) | All versions < V3.5.4 | — |
| Siemens | APOGEE PXC Modular (P2 Ethernet) | All versions < V2.8.19 | — |
| Siemens | Capital VSTAR | All versions with enabled Ethernet options | — |
| Siemens | Desigo PXC00-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC00-U | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC001-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC100-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC12-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC128-U | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC200-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC22-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC22.1-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC36.1-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC50-E.D | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXC64-U | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Desigo PXM20-E | All versions >= V2.3 and < V6.30.016 | — |
| Siemens | Nucleus NET | All versions | — |
| Siemens | Nucleus ReadyStart V3 | All versions < V2017.02.4 | — |
| Siemens | Nucleus Source Code | All versions | — |
| Siemens | TALON TC Compact (BACnet) | All versions < V3.5.4 | — |
| Siemens | TALON TC Modular (BACnet) | All versions < V3.5.4 | — |
Advisories 6
- VDE-2021-059 PHOENIX CONTACT: BLUEMARK X1 / LED / CLED printers utilizing the Siemens Nucleus RTOS TCP/IP Stack CERT@VDE · May 22, 2025
- ICSA-21-315-07 Siemens Nucleus RTOS-based APOGEE and TALON Products (Update C) CISA ICS & IT advisories · May 6, 2025
- ICSA-21-313-03 Siemens Nucleus RTOS TCP/IP Stack CISA ICS & IT advisories · May 6, 2025
- SSA-114589 SSA-114589: Multiple Vulnerabilities in Nucleus RTOS based APOGEE, TALON and Desigo PXC/PXM Products Siemens ProductCERT · May 10, 2022
- SSA-044112 SSA-044112: Multiple Vulnerabilities (NUCLEUS:13) in the TCP/IP Stack of Nucleus RTOS Siemens ProductCERT · Dec 14, 2021
- VDE-2021-050 WAGO: Multiple devices affected by Vulnerabilities in NUCLEUS TCP Stack. CERT@VDE · Nov 16, 2021