CVE-2025-11789 Out-of-bounds read vulnerability in Circutor SGE-PLC1000/SGE-PLC50
An attacker can trigger an out-of-bounds read in Circutor PLCs via the DownloadFile function, potentially exposing memory or causing a crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11789?
CVE-2025-11789 is a high-severity memory corruption vulnerability in SGE-PLC1000 SGE-PLC50 Circutor, published on 2 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Out-of-bounds read vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'DownloadFile' function converts a parameter to an integer using 'atoi()' and then uses it as an index in the 'FilesDownload' array with '(&FilesDownload)[iVar2]'. If the parameter is too large, it will access memory beyond the limits.
Weakness: CWE-125
Which versions are affected by CVE-2025-11789?
It affects 2 products.
Products include Circutor Sge-Plc1000 Firmware, Circutor Sge-Plc50 Firmware.
How do I fix CVE-2025-11789?
No fix has been published for CVE-2025-11789 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-11789 being exploited?
There is no known exploitation of CVE-2025-11789 in the wild and no public exploit code.
Other vulnerabilities in SGE-PLC1000 SGE-PLC50 Circutor
- CVE-2025-11778 Stack-based buffer overflow vulnreability in Circutor SGE-PLC1000/SGE-PLC50
- CVE-2021-33841 Circutor SGE-PLC1000 OS command Injection
- CVE-2025-11779 Stack-based buffer overflow vulnreability in Circutor SGE-PLC1000/SGE-PLC50
- CVE-2021-33842 Circutor SGE-PLC1000 improper authentication
- CVE-2025-11780 Stack-based buffer overflow vulnreability in Circutor SGE-PLC1000/SGE-PLC50
Sources
Also known as GHSA-wpp7-q3x3-5ggp.