Vulnerability · Published Oct 13, 2026 · Assigned by siemens
CVE-2026-102074
High 7.5
In plain English
A high-severity stack buffer overflow in APOGEE MBC (PPC) (BACnet) from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Official 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 < V3.5.7), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.21), APOGEE PXC Modular (BACnet) (All versions < V3.5.7), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.21), TALON TC Compact (BACnet) (All versions < V3.5.7), TALON TC Modular (BACnet) (All versions < V3.5.7). The affected product FTP service does not properly validate the length of user-controllable input. This could allow an unauthenticated remote attacker to cause a denial of service.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | APOGEE MBC (PPC) (BACnet) | 0 – before * |
| Siemens | APOGEE MBC (PPC) (P2 Ethernet) | 0 – before * |
| Siemens | APOGEE MEC (PPC) (BACnet) | 0 – before * |
| Siemens | APOGEE MEC (PPC) (P2 Ethernet) | 0 – before * |
| Siemens | APOGEE PXC Compact (BACnet) | 0 – before V3.5.7 |
| Siemens | APOGEE PXC Compact (P2 Ethernet) | 0 – before V2.8.21 |
| Siemens | APOGEE PXC Modular (BACnet) | 0 – before V3.5.7 |
| Siemens | APOGEE PXC Modular (P2 Ethernet) | 0 – before V2.8.21 |
| Siemens | TALON TC Compact (BACnet) | 0 – before V3.5.7 |
| Siemens | TALON TC Modular (BACnet) | 0 – before V3.5.7 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H