CVE-2025-11788
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-02

Last updated on: 2025-12-03

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

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.
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Meta Information
Published
2025-12-02
Last Modified
2025-12-03
Generated
2026-06-16
AI Q&A
2025-12-02
EPSS Evaluated
2026-06-14
NVD
CVE-2025-11788
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
circutor sge-plc1000_firmware 9.0.2
circutor sge-plc1000 *
circutor sge-plc50_firmware 9.0.2
circutor sge-plc50 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

This vulnerability is a heap-based buffer overflow in Circutor SGE-PLC1000/SGE-PLC50 version 9.0.2. It occurs in the 'ShowSupervisorParameters()' function where user input from the 'meter' parameter is copied into a fixed-size buffer using 'sprintf()' without validating the input size. An attacker can exploit this by providing an excessively large input, causing memory corruption.

Impact Analysis

Exploiting this vulnerability can lead to memory corruption, which may allow an attacker to execute arbitrary code, cause a denial of service, or crash the device. Since the vulnerability involves unsafe handling of user input, it can compromise the stability and security of the affected Circutor devices.

Mitigation Strategies

Immediate mitigation steps include updating the firmware of Circutor SGE-PLC1000/SGE-PLC50 devices to version 2.0.0 or later, as the affected devices have been discontinued and replaced by newer models. This update addresses multiple vulnerabilities including heap-based buffer overflows caused by unsafe input handling. Additionally, consider replacing legacy devices with newer models such as Compact DC or GEDE EDC to ensure continued security. [1]

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