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CVE-2025-11782VulnerabilityPublished

CVE-2025-11782: 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 26 Oct 2026, 06:26 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 2026-10-26.

What to do

Affected software

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

AI-suggested

1. Immediate mitigation should focus on network segmentation and restricting access to Circutor devices, ensuring they are not directly accessible from untrusted networks or the internet. 2. Implement strict firewall rules and access control lists (ACLs) to limit communication to trusted management hosts only. 3. Monitor network traffic for anomalous or unexpected requests targeting the 'meter' parameter or the affected services. 4. Engage with Circutor or authorized vendors to obtain firmware updates or patches addressing this vulnerability; if unavailable, request vendor guidance or workarounds. 5. If patching is delayed, consider deploying intrusion prevention systems (IPS) with custom signatures to detect and block exploit attempts targeting this buffer overflow. 6. Conduct thorough inventory and asset management to identify all affected devices within the organization. 7. Train operational technology (OT) security teams to recognize signs of exploitation and respond promptly. 8. Regularly back up device configurations and critical data to enable recovery in case of compromise.

Description

CVE-2025-11782 is a high-severity stack-based buffer overflow vulnerability in Circutor SGE-PLC1000 and SGE-PLC50 devices, specifically version 9.0.2. The flaw exists in the 'ShowDownload()' function, which uses an unsafe sprintf() call to copy user-controlled input from the 'meter' parameter into a fixed 64-byte buffer without length validation. An attacker with low privileges but network access can exploit this vulnerability by sending a crafted 'meter' parameter value exceeding the buffer size, potentially leading to arbitrary code execution or denial of service. No user interaction is required, and the vulnerability affects confidentiality, integrity, and availability. Although no known exploits are currently in the wild, the high CVSS score (8.5) indicates significant risk. European organizations using these Circutor PLC devices, especially in critical infrastructure or industrial environments, should prioritize patching or mitigating this issue. Countries with substantial industrial automation sectors and Circutor product deployments, such as Germany, France, Spain, and Italy, are most likely to be impacted.

References

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