Threat Intelligence Database

Out-of-bounds read vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'DownloadFile' function converts a parameter to an integer using 'atoi()' and then uses it as an index in the 'FilesDownload' array with '(&FilesDownload)[iVar2]'. If the parameter is too large, it will access memory beyond the limits.

HighVulnerabilitySpainGermanyFrance+3#cve#cve-2025-11789#cwe-125

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterDatabase()' 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.

HighVulnerabilityGermanyFranceSpain+7#cve#cve-2025-11784#cwe-121

CVE-2025-11782 is a high-severity stack-based buffer overflow vulnerability in Circutor SGE-PLC1000 and SGE-PLC50 devices, specifically version 9.0.2. The flaw exists in the 'ShowDownload()' function, which uses an unsafe sprintf() call to copy user-controlled input from the 'meter' parameter into a fixed 64-byte buffer without length validation. An attacker with low privileges but network access can exploit this vulnerability by sending a crafted 'meter' parameter value exceeding the buffer size, potentially leading to arbitrary code execution or denial of service. No user interaction is required, and the vulnerability affects confidentiality, integrity, and availability. Although no known exploits are currently in the wild, the high CVSS score (8.5) indicates significant risk. European organizations using these Circutor PLC devices, especially in critical infrastructure or industrial environments, should prioritize patching or mitigating this issue. Countries with substantial industrial automation sectors and Circutor product deployments, such as Germany, France, Spain, and Italy, are most likely to be impacted.

HighVulnerabilityGermanyFranceSpain+4#cve#cve-2025-11782#cwe-121

Use of hardcoded cryptographic keys in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The affected firmware contains a hardcoded static authentication key. An attacker with local access to the device can extract this key (e.g., by analysing the firmware image or memory dump) and create valid firmware update packages. This bypasses all intended access controls and grants full administrative privileges.

HighVulnerabilitySpainGermanyFrance+4#cve#cve-2025-11781#cwe-321

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'showMeterReport()' 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.

HighVulnerabilitySpainGermanyFrance+3#cve#cve-2025-11780#cwe-120