CVE-2020-8478

Name: CVE-2020-8478
Creator: NVD / NIST
Published: 2020-04-29T02:15:11.763+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.3/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2020-8478 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. Insufficient protection of the inter-process communication functions in ABB System 800xA products OPC Server for AC 800M, MMS Server for AC 800M and Base Software for SoftControl (all published versions) enables an attacker authenticated on the local system to inject data, affecting the online view of runtime data shown in Control Builder.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Insufficient protection of the inter-process communication functions in ABB System 800xA products OPC Server for AC 800M, MMS Server for AC 800M and Base Software for SoftControl (all published versions) enables an attacker authenticated on the local system to inject data, affecting the online view of runtime data shown in Control Builder.

Metrics

CVSS 3.1

3.3/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.33%

24.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Abb	Mms Server	All versions
Abb	Opc Server	All versions
Abb	Base Software	All versions

References

Timeline

Published: Apr 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8478?

How severe is CVE-2020-8478?

CVE-2020-8478 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8478?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8478?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST