CVE-2020-15806

Name: CVE-2020-15806
Creator: NVD / NIST
Published: 2020-07-22T19:15:12.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.05%

Last modified Jun 17, 2026

CVE-2020-15806 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. CODESYS Control runtime system before 3.5.16.10 allows Uncontrolled Memory Allocation.. EPSS estimates a 2.05% chance of exploitation in the next 30 days.

Description

CODESYS Control runtime system before 3.5.16.10 allows Uncontrolled Memory Allocation.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.05%

78.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
Codesys	Control For Beaglebone	< 3.5.16.10
Codesys	Control For Empc-A\/Imx6	< 3.5.16.10
Codesys	Control For Iot2000	< 3.5.16.10
Codesys	Control For Linux	< 3.5.16.10
Codesys	Control For Pfc100	< 3.5.16.10
Codesys	Control For Pfc200	< 3.5.16.10
Codesys	Control For Plcnext	< 3.5.16.10
Codesys	Control For Raspberry Pi	< 3.5.16.10
Codesys	Control For Wago Touch Panels 600	< 3.5.16.10
Codesys	Control Rte	>= 3.5.8.60, < 3.5.16.10
Codesys	Control Runtime System Toolkit	>= 3.0, < 3.5.16.10
Codesys	Control Win	>= 3.5.9.80, < 3.5.16.10
Codesys	Embedded Target Visu Toolkit	>= 3.0, < 3.5.16.10
Codesys	Hmi	>= 3.5.10.0, < 3.5.16.10
Codesys	Remote Target Visu Toolkit	>= 3.0, < 3.5.16.10
Codesys	Simulation Runtime	>= 3.5.9.40, < 3.5.16.10

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=13199&token=3e283c3e73fed61f7c181a7fa1169477efaf0c58&download=Mitigation, Vendor Advisory
https://www.codesys.comVendor Advisory
https://www.tenable.com/security/research/tra-2020-46Exploit, Third Party Advisory
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=13199&token=3e283c3e73fed61f7c181a7fa1169477efaf0c58&download=Mitigation, Vendor Advisory
https://www.codesys.comVendor Advisory
https://www.tenable.com/security/research/tra-2020-46Exploit, Third Party Advisory

Timeline

Published: Jul 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15806?

CODESYS Control runtime system before 3.5.16.10 allows Uncontrolled Memory Allocation.

How severe is CVE-2020-15806?

CVE-2020-15806 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15806?

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-2020-15806?

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

Scan your code now

Source: NVD / NIST