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CVE-2025-11781

Published: Dec 2, 2025Updated: Dec 3, 2025 Sources: CVE List NVDCWE-321
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.1%
Top 97.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-321

Affected Products

CircutorSGE-PLC1000 SGE-PLC50
Embedded
ICS / OT / IoT / plc-scada-hmi
sge-plc1000 firmwarecircutor
Embedded
ICS / OT / IoT / plc-scada-hmi
sge-plc50 firmwarecircutor
Embedded
ICS / OT / IoT / plc-scada-hmi
sge-plc1000 sge-plc50commercialICS / OT / IoTaka circutor
circutorcommercialICS / OT / IoTaka sge-plc1000, sge-plc50, tcprs1plus

Exploitability

Official Patch Available

References

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

Timeline

Published
Dec 2, 2025
Last Updated
Dec 3, 2025

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