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CVE-2025-11786VulnerabilityPublished

CVE-2025-11786: SGE-PLC1000 SGE-PLC50 Circutor · Stack-based Buffer Overflow

Affects SGE-PLC1000 SGE-PLC50 CircutorSource CVE Database V5

0

Not known to be exploited · CVSS 8.5 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
8.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:H/SC:H/SI:L/SA:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
SGE-PLC1000 SGE-PLC50 CircutorAffected
  • =9.0.2
Fixed in–

AI-suggested

1. Immediately implement strict network segmentation to isolate Circutor SGE-PLC devices from general enterprise networks and restrict access to trusted hosts only. 2. Enforce strong access control policies, including multi-factor authentication and role-based access, to limit who can interact with the vulnerable devices. 3. Monitor network traffic and device logs for unusual command execution patterns or unauthorized access attempts, using IDS/IPS tuned for ICS environments. 4. Disable or restrict remote management interfaces if not strictly necessary, or secure them with VPNs and strong authentication. 5. Until a vendor patch is released, avoid using the SetUserPassword() function remotely or restrict its usage to trusted administrators. 6. Engage with Circutor for timely updates and patches; prioritize patch deployment once available. 7. Conduct regular security audits and penetration tests focusing on industrial control systems to identify and remediate similar vulnerabilities. 8. Train operational technology (OT) staff on recognizing signs of exploitation and incident response procedures specific to ICS environments. 9. Maintain up-to-date asset inventories to quickly identify affected devices and assess exposure. 10. Consider deploying application whitelisting or endpoint protection solutions tailored for ICS to prevent unauthorized command execution.

Description

Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'SetUserPassword()' function, the 'newPassword' parameter is directly embedded in a shell command string using 'sprintf()' without any sanitisation or validation, and then executed using 'system()'. This allows an attacker to inject arbitrary shell commands that will be executed with the same privileges as the application.

References

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