CVE-2025-11788 Heap-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50

High 8.5 Published 2 Dec 2025 Updated 2 Dec 2025

Heap-based buffer overflow in Circutor PLCs allows attackers to execute arbitrary code or cause denial of service via oversized meter parameters.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-11788?

CVE-2025-11788 is a high-severity memory corruption vulnerability in SGE-PLC1000 SGE-PLC50 Circutor, published on 2 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Heap-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowSupervisorParameters()' function, there is an unlimited user input that is copied to a fixed-size buffer via 'sprintf()'. The 'GetParameter(meter)' function retrieves the user input, which is directly incorporated into a buffer without size validation. An attacker can provide an excessively large input for the 'meter' parameter.

Weakness: CWE-122

Which versions are affected by CVE-2025-11788?

It affects 2 products.

Products include Circutor Sge-Plc1000 Firmware, Circutor Sge-Plc50 Firmware.

How do I fix CVE-2025-11788?

No fix has been published for CVE-2025-11788 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-2025-11788 being exploited?

There is no known exploitation of CVE-2025-11788 in the wild and no public exploit code.

Sources

Also known as GHSA-p9g3-rphv-8hgj.