CVE-2020-7475

Name: CVE-2020-7475
Creator: NVD / NIST
Published: 2020-03-23T19:15:12.413+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2020-7475 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), reflective DLL, vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20), Modicon M580 (all versions prior to V3.10), which, if exploited, could allow attackers to transfer malicious code to the controller.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

A CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), reflective DLL, vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20), Modicon M580 (all versions prior to V3.10), which, if exploited, could allow attackers to transfer malicious code to the controller.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.54%

71.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Schneider-Electric	Ecostruxure Control Expert	<= 14.0
Schneider-Electric	Unity Pro	All versions
Schneider-Electric	Modicon M340 Firmware	< 3.20
Schneider-Electric	Modicon M580 Firmware	< 3.10

References

http://www.se.com/ww/en/download/document/SEVD-2020-080-01Vendor Advisory
http://www.se.com/ww/en/download/document/SEVD-2020-080-01Vendor Advisory

Timeline

Published: Mar 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7475?

How severe is CVE-2020-7475?

CVE-2020-7475 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7475?

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-2020-7475?

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

Scan your code now

Source: NVD / NIST