CVE-2025-11782 Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50

High 8.5 Published 2 Dec 2025 Updated 2 Dec 2025

Attacker can trigger stack-based buffer overflow in Circutor PLCs via long meter parameter, potentially causing code execution or denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-11782?

CVE-2025-11782 is a high-severity memory corruption vulnerability in SGE-PLC1000 SGE-PLC50 Circutor, published on 2 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'ShowDownload()' function uses “sprintf()” to format a string that includes the user-controlled input of 'GetParameter(meter)' in the fixed-size buffer 'acStack_4c' (64 bytes) without checking the length. An attacker can provide an excessively long value for the 'meter' parameter that exceeds the 64-byte buffer size.

Weakness: CWE-121

Which versions are affected by CVE-2025-11782?

It affects 2 products.

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

How do I fix CVE-2025-11782?

No fix has been published for CVE-2025-11782 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-2025-11782 being exploited?

There is no known exploitation of CVE-2025-11782 in the wild and no public exploit code.

Sources

Also known as GHSA-c4pw-xr6q-5vh2.