CVE-2020-25159

Real Time Automation EtherNet/IP

CRITICAL
9.8
CVSS Score
Published: November 24, 2020 at 07:12 PM UTC
Updated: June 17, 2026 at 03:06 AM UTC
3 products affected across 2 vendors499ES Ethernet /ip Adaptor Firmware499Es Ethernet/Ip Adaptor499ES Ethernet IP Adaptor

Using 499ES EtherNet/IP (ENIP) Adaptor Source Code by Real Time Automation?

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

Description

499ES EtherNet/IP (ENIP) Adaptor Source Code is vulnerable to a stack-based buffer overflow, which may allow an attacker to send a specially crafted packet that may result in a denial-of-service condition or code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.28
Affected range stops below 2.28, so it looks safe — our inference, not a vendor statement
rtautomation-499es-ethernet-ip-adaptor (same device)
v < 2.28
Affected range stops below 2.28, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party AdvisoryUS Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-324-03

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-121CWE-787

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