CVE-2025-11778
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
Stack-based buffer overflow in Circutor SGE-PLC1000/SGE-PLC50 v0.9.2. This vulnerability allows an attacker to remotely exploit memory corruption through the 'read_packet()' function of the TACACSPLUS implementation.
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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
2026-06-15
NVD
CVE-2025-11778
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
circutor sge-plc1000_firmware 0.9.2
circutor sge-plc1000 *
circutor sge-plc50_firmware 0.9.2
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

CVE-2025-11778 is a critical stack-based buffer overflow vulnerability in Circutor SGE-PLC1000 and SGE-PLC50 devices version 0.9.2. It occurs in the 'read_packet()' function of the TACACSPLUS implementation, allowing remote attackers to exploit memory corruption without requiring authentication or user interaction. This vulnerability can lead to severe security issues due to improper input validation and unsafe coding practices. [1]

Impact Analysis

This vulnerability can allow remote attackers to execute arbitrary code or cause a denial of service by exploiting memory corruption in affected devices. Since it does not require authentication or user interaction, it poses a high risk of unauthorized access, firmware tampering, or disruption of remote electricity network management systems using these devices. [1]

Mitigation Strategies

To mitigate CVE-2025-11778, it is recommended to update the firmware of Circutor SGE-PLC1000/SGE-PLC50 devices to version 2.0.0 or later, as the affected devices (version 0.9.2) have been discontinued since 2015 and replaced by newer models. This update addresses the critical stack-based buffer overflow vulnerability in the TACACSPLUS 'read_packet()' function and other related vulnerabilities. [1]

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