CVE-2019-13538

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-17 · updated 2026-06-17
Weakness: CWE-79

Description

3S-Smart Software Solutions GmbH CODESYS V3 Library Manager, all versions prior to 3.5.16.0, allows the system to display active library content without checking its validity, which may allow the contents of manipulated libraries to be displayed or executed. The issue also exists for source libraries, but 3S-Smart Software Solutions GmbH strongly recommends distributing compiled libraries only.

Affected products

CODESYS: before 3.5.16.0 — fixed in 3.5.16.0

How to fix

Upgrade to a fixed version: CODESYS 3.5.16.0. Check the vendor advisory for mitigations.

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=12940&token=7723e5ed99830656f487e218e73dce2de751102f
https://www.us-cert.gov/ics/advisories/icsa-19-255-02
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=12940&token=7723e5ed99830656f487e218e73dce2de751102f
https://www.us-cert.gov/ics/advisories/icsa-19-255-02

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