Remote code execution in FATEK Automation WinProladder

Published: 2021-04-09
Risk High
Patch available NO
Number of vulnerabilities 1
CVE ID CVE-2021-2748
Exploitation vector Network
Public exploit N/A
Vulnerable software
PLC WinProladder
Other software / Other software solutions

Vendor Fatek

Security Advisory

This security advisory describes one high risk vulnerability.

1) Integer underflow

Risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C] [PCI]

CVE-ID: CVE-2021-2748

CWE-ID: CWE-191 - Integer Underflow (Wrap or Wraparound)

Exploit availability: No


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer underflow. A remote attacker can trigger integer underflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PLC WinProladder: 3.30

CPE External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.