CVE-2026-102074 Memory corruption in APOGEE MBC (PPC) (BACnet)
Unauthenticated remote attackers can cause denial of service in Siemens APOGEE and TALON controllers via a buffer overflow in the FTP service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102074?
CVE-2026-102074 is a high-severity memory corruption vulnerability in Siemens APOGEE MBC (PPC) (BACnet), published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-121
Which versions are affected by CVE-2026-102074?
How do I fix CVE-2026-102074?
No fix has been published for CVE-2026-102074 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-102074 being exploited?
There is no known exploitation of CVE-2026-102074 in the wild and no public exploit code.
Sources
Also known as GHSA-p6cj-9q95-w4h2.