CVE-2025-11783: SGE-PLC1000 SGE-PLC50 Circutor · Stack-based Buffer Overflow
Affects SGE-PLC1000 SGE-PLC50 CircutorSource CVE Database V5
Not known to be exploited · CVSS 8.5 High.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% 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:HExploitation evidence
Disclosed: evidence found.
CVE published 2 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| SGE-PLC1000 SGE-PLC50 Circutor | Affected
| Fixed in– |
AI-suggested
1. Immediately implement strict network segmentation to isolate Circutor PLC devices from general IT networks and restrict access to trusted management stations only. 2. Employ access control lists (ACLs) and firewall rules to limit network traffic to and from the affected devices, ensuring only authorized systems can communicate with them. 3. Monitor network traffic for anomalous activity targeting the AddEvent() function or unusual username input patterns that could indicate exploitation attempts. 4. Coordinate with Circutor or authorized vendors to obtain and apply firmware updates or patches as soon as they are released. 5. If patches are not yet available, consider temporary mitigations such as disabling or restricting the vulnerable AddEvent() functionality if feasible. 6. Conduct thorough audits of existing PLC deployments to identify all devices running vulnerable firmware versions. 7. Implement strong authentication and logging mechanisms on management interfaces to detect and prevent unauthorized access. 8. Train operational technology personnel on this vulnerability and the importance of maintaining strict network hygiene and monitoring.
Description
Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The vulnerability is found in the 'AddEvent()' function when copying the user-controlled username input to a fixed-size buffer (48 bytes) without boundary checking. This can lead to memory corruption, resulting in possible remote code execution.