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CVE-2025-11779: Stack-based buffer overflow vulnreability in Circutor SGE-PLC1000/SGE-PLC50

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-02 · updated 2026-09-26
• Weakness: CWE-121

Description

Stack-based buffer overflow vulnerability in CircutorSGE-PLC1000/SGE-PLC50 v9.0.2. The 'SetLan' function is invoked when a new configuration is applied. This new configuration function is activated by a management web request, which can be invoked by a user when making changes to the 'index.cgi' web application. The parameters are not being sanitised, which could lead to command injection.

Affected products

• Circutor SGE-PLC1000: 9.0.2
• CIRCUTOR Sge-Plc50 Firmware: 9.0.2

References

• https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-circutor-products-0

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