Remote code execution in Real Time Automation EtherNet/IP

Published: 2020-11-18
Risk High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-25159
Exploitation vector Network
Public exploit N/A
Vulnerable software
499ES EtherNet/IP (ENIP) Adaptor Source Code
Other software / Other software solutions

Vendor Real Time Automation

Security Advisory

This security advisory describes one high risk vulnerability.

1) Stack-based buffer overflow

Risk: High

CVSSv3: 8.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-25159

CWE-ID: CWE-121 - Stack-based Buffer Overflow

Exploit availability: No


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

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can send a specially crafted packet, trigger stack-based buffer overflow and execute arbitrary code on the target system.

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


Install updates from vendor's website.

Vulnerable software versions

499ES EtherNet/IP (ENIP) Adaptor Source Code: before 2.28

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.